FAQ
Login, registration and invitations
Troubleshoot and support
Roles and certificates
Instruction
Watch the video below to get an introduction to this application.
Watch instruction video
Contact
You can contact us by selecting a topic below. After selecting a topic you can send us an email via the blue button.
Contact us via email
Contact us via email
Instruction video
You have received an email with an invitation to activate an account. This email contains a
username and a password. (Username has the format of: firstname.lastname@tennet-workoffshore.nl).
The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.nl). Sign in as soon as possible via the link in the email at [GoOffshore].
Steps to activate your account
Troubleshooting tip
If you are not asked to enter your username and password, this may be because you are already signed in with another Microsoft account. To resolve this:
Set up secure sign in
After signing in you will see a screen asking you to continue. Click on the 'Next' button to set up a secure sign in method.

Two methods for secure sign in
Change your password
After completing the secure sign in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account.
The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.nl). Sign in as soon as possible via the link in the email at [GoOffshore].
Steps to activate your account
- In the email you will receive a username in the format: (firstname.lastname)@tennet-workoffshore.nl and a temporary password.
- Open the login page of the [GoOffshore] Certification portal via this link: Sign in
-
Click on the 'Sign in' button.
- Follow the instructions to enter your username and password, which you can directly copy from the invitation email.
Troubleshooting tip
If you are not asked to enter your username and password, this may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito window').
- Visit the login page again in the InPrivate/Incognito window.
Set up secure sign in
After signing in you will see a screen asking you to continue. Click on the 'Next' button to set up a secure sign in method.

Two methods for secure sign in
- In the next screen you can proceed by using the Microsoft Authenticator app as a secure sign in method. Follow the instructions to download and set it up.
-
If you prefer, select I want to set up a different method to receive secure codes via your
phone.
Change your password
After completing the secure sign in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account.
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.nl) with subject
'You received access to the Go4IT apps'. This email contains a username, a password and a link to the [WorkOffshore] application.
(Username has the format of: firstname.lastname@tennet-workoffshore.nl).
Steps to activate your account
After completing the secure log in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account and the application will open.
Troubleshooting hint
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
Steps to activate your account
- Select the [WorkOffshore] link in the email or use this Link to open the application.
- You are asked to enter your username. Use the username you received in the email with this format firstname.lastname@tennet-workoffshore.nl.
- The next step is setting up a secure sign in method. Click on the 'Next' button to proceed.
- Follow the prompts to set up your secure log in method.
- Enter your username and password, which you can copy directly from the invitation email.
After completing the secure log in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account and the application will open.
Troubleshooting hint
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito Window').
- Revisit the sign in page in the InPrivate/Incognito window.
On the sign in page you can sign in via the Sign in button:
If you have not yet registered for the portal, please refer to the 'How can I request access for the [GoOffshore] portal and optionally [WorkOffshore]?' section.
-
TenneT
You're a TenneT employee with a @tennet.eu e-mail address. You can sign in with your @tennet.eu mail address and password. -
Another company
I do not work at TenneT but for an external contractor/company. You have received a username and password via email from No Reply GoOffshore (no-reply@tennet-gooffshore.nl). You can sign in with your username. If you have not received this email, please send us an email via the contact option on this help page.

If you have not yet registered for the portal, please refer to the 'How can I request access for the [GoOffshore] portal and optionally [WorkOffshore]?' section.
Open the application:
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.nl) with a link to the [WorkOffshore] application. You can use the link from the email to sign in or use this link:
[WorkOffshore]
Sign in:
Use the same username and password that you use to sign in to the [GoOffshore] portal (username has the format of: firstname.lastname@tennet-workoffshore.nl).
If you have problems signing in to the [WorkOffshore] application, try to empty your cache or login via an incognito or in private window.
[WorkOffshore] instructions:
In the left navigation bar of the [WorkOffshore] application, clicking the Help topic will redirect you to the [WorkOffshore] Sharepoint site, which contains instructions and videos on how to use the application.
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.nl) with a link to the [WorkOffshore] application. You can use the link from the email to sign in or use this link:
[WorkOffshore]
Sign in:
Use the same username and password that you use to sign in to the [GoOffshore] portal (username has the format of: firstname.lastname@tennet-workoffshore.nl).
If you have problems signing in to the [WorkOffshore] application, try to empty your cache or login via an incognito or in private window.
[WorkOffshore] instructions:
In the left navigation bar of the [WorkOffshore] application, clicking the Help topic will redirect you to the [WorkOffshore] Sharepoint site, which contains instructions and videos on how to use the application.
To gain access to the [GoOffshore] portal, you can request access via the Registration page.
Steps:
Access to [GoOffshore] means you are able to sign in to this [GoOffshore] portal where you can manage your roles and certificates, see your flight details and see or edit your profile details.
Access to [WorkOffshore] means you need to be able to request permits to work using the [WorkOffshore] application.
When your access has been approved you will receive an email with your username and password. The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.nl). Check out the next topic to see how you can activate your account.
Steps:
- Select your platform you are planning to work on in the platform drop down menu.
- Select your purpose in the Purpose drop down menu.
Access to [GoOffshore] means you are able to sign in to this [GoOffshore] portal where you can manage your roles and certificates, see your flight details and see or edit your profile details.
Access to [WorkOffshore] means you need to be able to request permits to work using the [WorkOffshore] application.
When your access has been approved you will receive an email with your username and password. The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.nl). Check out the next topic to see how you can activate your account.
Do you see the following error message?
User account '{email}' from identity provider '{idp}' does not exist in tenant '{tenant}' and
cannot access the application '{appId}'({appName}) in that tenant.
If you see this error message when trying to sign in with a non-tennet account, this probably means that you are signed in with the wrong account.
What to do:
If you see this error message when trying to sign in with a non-tennet account, this probably means that you are signed in with the wrong account.
What to do:
- Try to sign in with your tennet-workoffshore account credentials that you received via email (from no-reply@tennet-gooffshore) when your portal access was set up. Please do not use your personal account. (Username has the format: firstname.lastname@tennet-workoffshore.nl)
- Does this not solve the problem or are you an internal user? Make sure you are trying to sign in to the correct portal.
- For Germany use the following link: https://gooffshore.tennet.eu
- For Netherlands use the following link: https://gooffshore-nl.tennet.eu
- If you still cannot sign in, this may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito window').
- Visit the sign in page again in the InPrivate/Incognito window.
- Otherwise, no account has been created for you yet and you need to request access via the register button above.
If you've forgotten your password, you can usually reset it yourself by following these steps:
Having trouble resetting your password?
If you see an error when trying to reset your password, it likely means you haven't logged in before and password reset isn't enabled yet for your account.
-
Go to the login page and enter your username.
- If you're an external user, your username is your WorkOffshore account (e.g. firstname.lastname@tennet-workoffshore.nl), which was sent to you by email.
- On the next screen (where you are asked to enter your password), click on 'Forgot your password?'.
- You will then be redirected to a page where you can reset your password.
Having trouble resetting your password?
If you see an error when trying to reset your password, it likely means you haven't logged in before and password reset isn't enabled yet for your account.
- Check your inbox for an email from no-reply@tennet-gooffshore containing your initial login credentials. Use those to log in for the first time. If you can't find the email or are still unable to log in, please contact the support team using the contact section on the right side of this page. They can help you reset your password manually.
For questions regarding [WorkOffshore], please use the application's help page or contact your respective project-related point of contact.
Use one of the following links to get to the SSP-Support for Go- and WorkOffshore:
The SSP is helpful when you want to report bugs and if you want to add external colleagues to the system.
- GoOffshore NL - Self Service Portal
- TravelOffshore NL - Self Service Portal
- WorkOffshore NL - Self Service Portal
The SSP is helpful when you want to report bugs and if you want to add external colleagues to the system.
Go to Roles and certificates in the top navigation and
then click on the New certificate button on the top right to upload a new
certificate.
After submission, the certificate will be reviewed by TenneT and you will be notified via email of the outcome.
After submission, the certificate will be reviewed by TenneT and you will be notified via email of the outcome.
Go to Roles and certificates in the top navigation and
then click on the New certificate button on the top right to upload a new
certificate.
After submission, the certificate will be reviewed by TenneT and you will be notified via email of the outcome. Six months after your old certificate has expired, it will be automatically removed from your overview.
After submission, the certificate will be reviewed by TenneT and you will be notified via email of the outcome. Six months after your old certificate has expired, it will be automatically removed from your overview.
A role is used as a mechanism to give a quick overview if a certain set of certificates has been
uploaded for a specific type of requirement. For example, the TenneT GFO-O Offshore role is used to
validate if a user has all the required certificates to be transported to and from a platform. Having
this specific role is essential to be able to work for TenneT on offshore platforms.
After submitting or updating a certificate, the validity is checked by TenneT. The certificate will
be pending in "Pending certificates" on the Roles and certificates page. Once the certificate is either
approved or rejected, an email notification will be sent.
- The first letter of your WINDA ID should start with the first letter of your first name as on your passport/ID or the second letter of your WINDA ID must start with the first letter of your last name as on your passport/ID.
- The next 6 characters (numbers 3 to 9) should be digits.
- The last 2 characters of your WINDA ID must match the country code of your passport issuing country.
If you are not able to set your WINDA ID, please contact operations.offshorenl@tennet.eu
The offshore safety induction ensures that you are familiar with TenneT's offshore safety regulations.
The induction templates are not available online. To receive the induction forms and the confirmation sheet, please ask your TenneT contact. You will receive the two necessary forms (induction + confirmation sheet) by e-mail.
After completing the induction with your supervisor, please fill out and sign the confirmation sheet.
Please ensure, that all fields specified in the confirmation sheet are proper filled.
Afterwards, please upload the confirmation sheet in GoOffshore by choosing one of the following certificates:
The induction templates are not available online. To receive the induction forms and the confirmation sheet, please ask your TenneT contact. You will receive the two necessary forms (induction + confirmation sheet) by e-mail.
After completing the induction with your supervisor, please fill out and sign the confirmation sheet.
Please ensure, that all fields specified in the confirmation sheet are proper filled.
Afterwards, please upload the confirmation sheet in GoOffshore by choosing one of the following certificates:
- External Safety Induction / Sicherheitsunterweisung
- TenneT Offshore Sicherheitsunterweisung
- Sicherheitsunterweisung Offshore
- SemSea Sicherheitsunterweisung
The flights can be found on the My flights page. This
page in this portal contains all your flight information and replaces the Flight Transmittal Sheet (FTS) that
was previously sent via email.
Flights are scheduled to enable a crew change for working on offshore platforms. In the my flights overview
you will see all related flights for that day within that crew change. You can view your flights on the My flights page.
You will receive an SMS for every new, update or cancellation of a flight. By default the "receive SMS
option" is set to yes, if you do not want to receive updates you can turn this off at the bottom of the Profile page
Note: Turning off SMS means you will not be notified and you must check the portal to see if there are changes or new flights!
Note: Turning off SMS means you will not be notified and you must check the portal to see if there are changes or new flights!
Send us an email to flightops@tennet.eu (
click here to send directly
from your device
).
FAQ
Login, registration and invitations
Troubleshoot and support
Roles and certificates
Flights and crew changes
Instruction
Watch the video on the page below to get an introduction to this application.
Watch instruction video
Contact
If you need to contact us you can do so by selecting a topic below, after selecting a topic you can send
us an
e-mail via the blue button.
Contact us via e-mail
Contact us via e-mail
Instruction video
You received an email with an invitation to activate an account. This email contains a username
and a password. (Username has the format of: firstname.lastname@tennet-workoffshore.de).
The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.de). Please sign in as soon as possible via the link in the email at [GoOffshore].
Steps to activate your account
Troubleshooting tip
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
Setting up secure sign in
After signing in, you will see a screen prompting you to proceed. Click on the 'Next' button to set up a secure sign in method.

Two methods for a secure sign in
Change your password
After completing the secure sign in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account.
The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.de). Please sign in as soon as possible via the link in the email at [GoOffshore].
Steps to activate your account
- In the email you will receive a username in the format: (firstname.lastname)@tennet-workoffshore.de and a temporary password.
- Open the sign in page of the [GoOffshore] Certification portal via this link: Sign in
-
Click on the 'Sign in' button.
- Follow the prompts to enter your username and password, which you can copy directly from the invitation email.
Troubleshooting tip
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito Window').
- Revisit the sign in page in the InPrivate/Incognito window.
Setting up secure sign in
After signing in, you will see a screen prompting you to proceed. Click on the 'Next' button to set up a secure sign in method.

Two methods for a secure sign in
- In the next screen you can proceed by using the Microsoft Authenticator app as a secure sign in method. Follow the instructions to download and set it up.
-
If you prefer, select I want to set up a different method to receive secure codes via your
phone.
Change your password
After completing the secure sign in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account.
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.de) with subject
'You received access to the Go4IT apps'. This email contains a username, a password and a link to the [WorkOffshore] application.
(Username has the format of: firstname.lastname@tennet-workoffshore.de).
Steps to activate your account
After completing the secure log in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account and the application will open.
Troubleshooting hint
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
Steps to activate your account
- Select the [WorkOffshore] link in the email or use this Link to open the application.
- You are asked to enter your username. Use the username you received in the email with this format firstname.lastname@tennet-workoffshore.de.
- The next step is setting up a secure sign in method. Click on the 'Next' button to proceed.
- Follow the prompts to set up your secure log in method.
- Enter your username and password, which you can copy directly from the invitation email.
After completing the secure log in setup, you will be asked to change your password. Once done, click 'Sign in' to finish setting up your account and the application will open.
Troubleshooting hint
If you are not prompted to enter your username and password, it may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito Window').
- Revisit the sign in page in the InPrivate/Incognito window.
On the sign in page you can sign in via the Sign in button:
If you have not yet registered for the portal, please refer to the 'How can I request access for the [GoOffshore] portal and optionally [WorkOffshore]?' section.
-
TenneT
You're a TenneT employee with a @tennet.eu e-mail address. You can sign in with your @tennet.eu mail address and password. -
Another company
I do not work at TenneT but for an external contractor/company. You have received a username and password via email from No Reply GoOffshore (no-reply@tennet-gooffshore.de). You can sign in with your username. If you have not received this email, please send us an email via the contact option on this help page.

If you have not yet registered for the portal, please refer to the 'How can I request access for the [GoOffshore] portal and optionally [WorkOffshore]?' section.
Open the application:
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.de) with a link to the [WorkOffshore] application. You can use the link from the email to sign in or use this link:
[WorkOffshore]
Sign in:
Use the same username and password that you use to sign in to the [GoOffshore] portal (username has the format of: firstname.lastname@tennet-workoffshore.de).
If you have problems signing in to the [WorkOffshore] application, try to empty your cache or login via an incognito or in private window.
[WorkOffshore] instructions:
In the left navigation bar of the [WorkOffshore] application, clicking the Help topic will redirect you to the [WorkOffshore] Sharepoint site, which contains instructions and videos on how to use the application.
You received an email from No Reply GoOffshore (no-reply@tennet-gooffshore.de) with a link to the [WorkOffshore] application. You can use the link from the email to sign in or use this link:
[WorkOffshore]
Sign in:
Use the same username and password that you use to sign in to the [GoOffshore] portal (username has the format of: firstname.lastname@tennet-workoffshore.de).
If you have problems signing in to the [WorkOffshore] application, try to empty your cache or login via an incognito or in private window.
[WorkOffshore] instructions:
In the left navigation bar of the [WorkOffshore] application, clicking the Help topic will redirect you to the [WorkOffshore] Sharepoint site, which contains instructions and videos on how to use the application.
To get access to the [GoOffshore] portal, you can request access via the Registration page.
Steps:
Access to [GoOffshore] means you are able to sign in to this [GoOffshore] portal where you can manage your roles and certificates, see your flight details and see or edit your profile details.
Access to [WorkOffshore] means you need to be able to request permits to work using the [WorkOffshore] application.
When your access has been approved you will receive an email with your username and password. The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.de). Check out the next topic to see how you can activate your account.
Steps:
- Select your platform you are planning to work on in the platform drop down menu.
- Select your purpose in the Purpose drop down menu.
Access to [GoOffshore] means you are able to sign in to this [GoOffshore] portal where you can manage your roles and certificates, see your flight details and see or edit your profile details.
Access to [WorkOffshore] means you need to be able to request permits to work using the [WorkOffshore] application.
When your access has been approved you will receive an email with your username and password. The sender of the email is: No Reply GoOffshore (no-reply@tennet-gooffshore.de). Check out the next topic to see how you can activate your account.
Do you see the following error?
User account from identity provider 'mail' does not exist in tenant 'Tenant' and cannot
access the application 'TenantID' (Portals-TenneT Offshore Certification and Flight Portal - PROD) in that tenant.
If you see this error message when trying to login with a non-tennet account, it likely means you're logged in with the wrong account.
What to do:
If you see this error message when trying to login with a non-tennet account, it likely means you're logged in with the wrong account.
What to do:
- Try to login with your tennet-workoffshore account credentials you received via email (from no-reply@tennet-gooffshore) when your access to the portal was set up. Please do not use your personal account. (Username has the format of: firstname.lastname@tennet-workoffshore.de)
- Does this not solve the problem or are you an internal user? Make sure that you try to login on the correct portal.
- For Germany use the following link: https://gooffshore.tennet.eu
- For the Netherlands use the following link: https://gooffshore-nl.tennet.eu
- If you are still not able to login, it may be because you are already signed in with another Microsoft account. To resolve this:
- Open an InPrivate/Incognito window (right-click on your browser icon and select 'New InPrivate/Incognito Window').
- Revisit the sign in page in the InPrivate/Incognito window.
- Otherwise no account is created yet for you and you need to request access using the register button above.
If you've forgotten your password, you can usually reset it yourself by following these steps:
Having trouble resetting your password?
If you see an error when trying to reset your password, it likely means you haven't logged in before and password reset isn't enabled yet for your account.
-
Go to the login page and enter your username.
- If you're an external user, your username is your WorkOffshore account (e.g. firstname.lastname@tennet-workoffshore.de), which was sent to you by email.
- On the next screen (where you are asked to enter your password), click on 'Forgot your password?'.
- You will then be redirected to a page where you can reset your password.
Having trouble resetting your password?
If you see an error when trying to reset your password, it likely means you haven't logged in before and password reset isn't enabled yet for your account.
- Check your inbox for an email from no-reply@tennet-gooffshore containing your initial login credentials. Use those to log in for the first time. If you can't find the email or are still unable to log in, please contact the support team using the contact section on the right side of this page. They can help you reset your password manually.
For questions regarding [WorkOffshore], please use the application's help page or contact your respective project-related point of contact.
Use this Link to get to the SSP-Support for Go- and WorkOffshore. The SSP is helpful when you want to report bugs and if you want to add external colleagues to the system.
In the top navigation go to Roles and certificates, then click
on New certificate button on
the right top to upload a new certificate.
After submission the certificate will be reviewed by TenneT and you will be notified via e-mail of the outcome.
After submission the certificate will be reviewed by TenneT and you will be notified via e-mail of the outcome.
In the top navigation go to Roles and certificates, then click
on New certificate button on
the right top to upload a new certificate.
After submission the certificate will be reviewed by TenneT and you will be notified via e-mail of the outcome. Six months after your old certificate has expired, it will be automatically removed from your overview.
After submission the certificate will be reviewed by TenneT and you will be notified via e-mail of the outcome. Six months after your old certificate has expired, it will be automatically removed from your overview.
A role is used as a mechanism to provide a quick overview if a certain set of certificates have been
uploaded for a specific type of requirement. For example the TenneT GFO-O Offshore role is used to
validate if a user has all the required certificates to be transported to and from a platform. Having
this particular role is essential to be able to work for TenneT on Offshore platforms.
After submitting or updating a certificate the validity will be checked by TenneT. The certificate will
be pending in "Pending certificates" on the
Roles and certificates
page
. Once the certificate is either approved or denied an e-mail notification will be send.
- The first letter of your WINDA ID should start with the first letter of your first name as on your passport/ID or the second letter of your WINDA ID should start with the first letter of your last name as on your passport/ID.
- The next 6 characters (numbers 3 to 9) should be numbers.
- The last 2 characters of your WINDA ID should correspond to the country code of your passport country of issue.
If you are not able to set your WINDA ID, please contact flightops@tennet.eu
The offshore safety induction ensures that you are familiar with TenneT's offshore safety regulations.
The induction templates are not available online. To receive the induction forms and the confirmation sheet, please ask your TenneT contact. You will receive the two necessary forms (induction + confirmation sheet) by e-mail.
After completing the induction with your supervisor, please fill out and sign the confirmation sheet.
Please ensure, that all fields specified in the confirmation sheet are proper filled.
Afterwards, please upload the confirmation sheet in GoOffshore by choosing one of the following certificates:
The induction templates are not available online. To receive the induction forms and the confirmation sheet, please ask your TenneT contact. You will receive the two necessary forms (induction + confirmation sheet) by e-mail.
After completing the induction with your supervisor, please fill out and sign the confirmation sheet.
Please ensure, that all fields specified in the confirmation sheet are proper filled.
Afterwards, please upload the confirmation sheet in GoOffshore by choosing one of the following certificates:
- External Safety Induction / Sicherheitsunterweisung
- TenneT Offshore Sicherheitsunterweisung
- Sicherheitsunterweisung Offshore
- SemSea Sicherheitsunterweisung
The flights can be found on the My flights page. In this portal
on this page you can find all your flight information and replaces the Flight Transmittal Sheet (FTS)
which was send before via e-mail.
Flights are planned to accommodate a crew change for working on Offshore platforms. On the my flights
overview you see all related flights for that day within that crew change. You can view my flights on My flights page.
You will receive an SMS for every new-, update or cancelation of a flight. By default the "receive SMS
option" is set to yes, if you do not want to receive updates you can turn this off on the bottom of the
Profile page
Please note: Turning of SMS will mean you will not be notified and you need to check the portal to see if there are changes or new flights!
Please note: Turning of SMS will mean you will not be notified and you need to check the portal to see if there are changes or new flights!
Send us an e-mail to flightops@tennet.eu (
click here to send
directly from your device
).