Finding the cause
It happens that the friending is not properly configured, or simply failing, with a specific remote application. To get more information about it, we can try to set up a Project Association with this remote application.
During the Project Association procedure, after selecting the Association Type, you will either see an error notification in a popup window (similar to the below first example), or an error from your OSLC application itself.
Possible causes can be:
in ELM, when the consumer key was deleted from the OSLC Connect application
in Polarion, when the consumer key has been deleted in the OSLC Connect application
in ELM, when the consumer key exists, but the consumer secret is invalid
in Polarion, when the consumer key exists, but the consumer secret is invalid
Error codes can be among:
Resolution will always be to delete the friend, and re-do the friending process.
To resolve this, you should:
remove the friend in your OSLC application
play the friending process again
recreate the friend from the OSLC application
approve the consumer key
validate the friending
you can read the Basic Configuration Learning Journey that corresponds to your tool from our https://sodiuswillert.atlassian.net/wiki/spaces/CUSTSODIUS/pages/2250604545 to accomplish that
If the problem persists, you may want to review the article around Failed authentication or authentication loops.