I would like to know if there is any documentation that specifies how or how often ISC tries to create an account in the target system if previous attempts failed.
Let me explain: I have some identities that had incomplete attributes and therefore some of their accounts could not be created. I see some retries in “Events” but since 2 days ago the creation is not reattempted (now the creation should work).
Is this behavior normal? I know I can force it manually, but does ISC automatically stop trying to create the account?
Here is the documentation that you are looking for.
Event based processing or scheduled processing takes care of the provisioning re-tries. But the change applies to only those identities that have changes as part of the aggregation. In your case, since your account is not created in the target source, only an attribute change in the HR source or any other aggerated source would trigger the refresh.
Looking at your scenario, looks like you will need to manually do a role refresh to process all identities or do a targeted user refresh to get the account creation re-tried.