Please check whether you restore/upgrade projects according to the following user guide:

Project restore considerations:

• Before restoring the project, make sure that the database where the project resides exists in the Servers tab in Site Administration on your ALM server. The ALM server needs to access the contents of the restored project from the project's database.
• When restoring a project, you should select the dbid.xml file located in the project repository. This ensures that the project retains its original ID. If a project does not have its original ID, the following cross project features may not function properly: cross project customization, importing and synchronizing libraries, and cross project graphs.
• You must first restore and upgrade any template projects before restoring and upgrading other projects. If the template project and its linked projects are in different databases, ensure that the template project’s database is accessible when restoring any linked projects.

Hi Tina Li,

Thank you for your reply.

The links lost between the Template and only a few projects (not all) not because of an upgrade.

I don't know the exact cause, are there any logs somewhere?

I would like to restore these links but I don't know how to proceed because I haven't found anywhere a guide or documents that mention this problem

AZ

Tina Li could you help with the follow on question?  Thank you!

Hi Heather,

Theoretically there's no internal logic to unlink a project from a template automatically, and we've never heard of a defect like this. The only way to unlink a project from a template is to manually do it from SA/project customization.

What happens if you link the project to the template again? Can it work?

Do you mind creating a support ticket to OT so we can use that channel to troubleshoot together?

BR,

David

CamilBlm - David's response is actually for you! :) 

Hi,

Unfortunately this is what happened on our ALM.

But nothing happened when I linked the projects that lost their links, except that in Customization = = > Cross Project Customization: not possible to display the list of projects because of the error message "Failed to get linked Project Customization", and I can't do anything after that.

A ticket is currently at OT.

Thank you Heather.

Hi,

Thanks for the further information - the error appears to be caused by some data corruption in your project customization and that may be also relevant to the reason it was unlinked from the template.

You can let the OpenText support engineer know that you're already in touch with RnD team, and ask them to escalate the ticket to us.

BR,

David