Issue Summary

Removing JSM as a product from the instance is not removing Old Customer accounts, causing new accounts added with the email of a prior customer, to not work properly.

Steps to Reproduce

1. Create an instance with JSM and JSW.
2. Add a user as customer with an email (user1@example.com)
3. Remove the JSM as a product
4. Add an internal user with the same email user1@example.com

Expected Results

The user user1@example.com will be considered an internal user and will be able to use the instance and its feature in its entirety.

Actual Results

Some features might fail, as in the backend, Jira might consider the account as a customer.
For example, mail handlers will identify the account as a customer, as it's still in the database.

Workaround

There are two possible workarounds:

• Temporarily install JSM application, perform a migration of the user by merging the Atlassian account, so both user profiles can be merged or they can delete the JSM customer user once JSM is installed;
• Contact Atlassian support for the other option.