Hi everyone,
We couldn’t see any more information with the trace level of the logs in VA other than the authentication error.
It turned out that the problem was that the service account was created in the tenant DB in HANA, but not in the system DB. Now with the account in both DBs we can successfully connect, but HANA sometimes automatically locks the service account when trying to test the connection to the database or perform an aggregation task.
We are currently working with the customer to see what could be the issue.
Thanks for the answers.