Summary

Similar to MIG-302: Add an option to stop a plan in JCMA, allow JCMA to reset the state to remove all migrations and start again with a blank JCMA. This will help in situations where there are many running, but incomplete plans.

Workaround

Please understand this is not recommended for production systems. This can be done with:

1. Disable JCMA via UPM.
2. Drop the database tables for JCMA. You can see which ones these are in admin → system → Plugin Data Storage and look for Jira Cloud Migration Assistant. They usually start with AO_6FF49D.
3. Enable JCMA via UPM.