I accidentally changed the prefix for one of the products and now it won't let me reuse the previous prefix. Also once you change the prefix for a product, it doesn't update the existing records. It should allow for a prefix to be reused and also update existing records to reflect the change. E.g. In JIRA when you change the project prefix, it updates the existing records (issues) within that project.
|Release time frame|
Thank you for the request. At this time, it is not possible to reuse prefixes which are currently being used by records in your account. This is done to prevent any overwriting of existing records in your account, as well as to ensure the any existing links to account records will still work.
Based on the above note, current priorities and community feedback, we are unlikely to make additional updates in this area. We hope you can understand.