FAQ’S – Registration Frequently Asked Questions

AddPdd Before contacting the IUGG 2023 Secretariat, please read through the following Frequently asked questions or visit the Registration Guidelines of the IUGG 2023.


How do I register for the General Assembly? 

The delegate/secretary/contact person must Create an Account and then continue filling out the online registration form. The delegate details (who will attend the general assembly) will be required. Automatically will be created the account based on the delegate’s email address.

If you fill in your all details, you will not have to fill the details in the form again.

Will the event be hybrid?

No, it will not. There is no possibility of active virtual participation foreseen. Some plenary sessions might be streamed/recorded, and access provided for a special fee.

Problem with logging in to the registration portal.

If you have forgotten your password, click here to retrieve it.

If you have forgotten your username, please contact us and outline your query.

I cannot find my registration confirmation email.

Institutions with high security and privacy settings may transfer emails sent from the online system to junk folders. You may also check the emails in the Mailing Archives and Communication Log on the IUGG 2023 homepage. 

I have received a Special code. How can I apply it?

  1. Create an account or sign into your existing account in the registration portal.
  2. Once you have an account, please click on the green button.
  3. Fill out your contact and invoice details.
  4. On the Registration fee page, you will be able to use the code. Once entered YOU MUST HIT THE SMALL MAGNIFYING GLASS ON THE RIGHT ON THE CODE BOX, this will activate the code. Please see highlighted in the picture below.

How can I register an accompanying person?

After finishing the main registration, use button “Add Participant/Add Accompanying Person” and register the accompanying person separately. You will be able to pay for both registrations at once.

How can I register more than 1 person or create a group registration?

If you wish to register less than 5 participants/delegates, it can be processed under one account. After finishing the first registration there is a button “Add Participant/Add Accompanying Person”. For registration for more than 10 participants, please contact us. 


(Further details can be found in the registration guidelines)

Can I make a name change to my registration?

For any changes of name, a fee of 20 EUR will be charged.

What is the cancellation policy if I cannot attend the IUGG General Assembly?

Please find our cancelation policy in the Registration guidelines.

I can no longer attend the IUGG General Assembly, but my colleague is available. What is the substitution policy? 

It is possible to change the name of the participant. For any change of name, a fee of 20 EUR will be charged. Any change must be notified in written form to the Organizing Secretariat.

What to do if you need to change your details?

Any change must be notified in written form to the Organizing Secretariat.


I selected bank transfer as my payment option, but now I want to pay with a credit card.

If you log in to the portal and click on the button Manage your registration, you will be forwarded to the next page, where you can change your payment method.

My payment was declined/cancelled, what should I do?

First, please check if your payment has been charged to your account. From time to time connection between our registration system and online payment provider takes a while. If the payment was declined, please contact the Organizing Secretariat.

Invoice Details request

The invoice details (name of company/institution, full address, VAT number if applicable) are important for your final invoice. Please note that a 20 EUR administrative fee will be charged for any changes.

An applicable VAT number is required for the invoice for participants from EU countries.



I need an invitation letter for VISA purposes. How do I receive it?

For Visa Invitation Letter kindly fill out this APPLICATION FORM. To obtain the Visa invitation letter the applicant must be either registered to the General Assembly and the registration fee must be paid or the applicant must have the IUGG Travel grant approved. The time of letter delivery to the applicant depends on the means of submission (electronic copy or physical original).


Can I obtain a Certificate of Attendance?

All registered delegates present on-site are entitled to receive a Certificate of Attendance. The certificate can be downloaded from the Online Registration Portal after the General Assembly.





  • The Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences

    Hosted by



  • Geo-X – The Research Network for Geosciences in Berlin and Potsdam


  • BGR – Federal Institute for Geosciences and Natural Resources


  • Federal Agency for Cartography and Geodesy




  • AWI


IUGG 2023 Secretariat: C-IN, 5. kvetna 65, 140 21 Prague 4, CZE | tel.: +420 296 219 600

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