The legal department demands a list containing the relation between a Jira user and the anonymized user name. This list of course would be kept secret.

Until now, I have to open an issue the user to be anonymized is represented, anonymize the user, reload the issue, and log the new anonymized user name.

My suggestion:

During the anonymization steps, Jira should display something like "You are going to anonymize user "kermit" to "user-ca31a". So I can log the relation.