Issue Summary

On CCMA migration after we make the selections (spaces, users etc.) it moves to the next screen and enters into an endless loop saying "Checking for errors" and nothing happens. When you click on "View Details" it shows "No errors or warnings" which is the confusing behavior.

This happens due to the expired authentication token.

Steps to Reproduce

1. Create new CCMA migration plan
2. Select the spaces, users groups, apps and click on next it shows the message "Checking for errors" for longer time without any progress.

Expected Results

Migration should move to next stage where it starts the preflight checks else it should show message/warning indicating the expired authentication token instead of running in loop on "Checking for errors"

Actual Results

It enters into the endless loop showing "Checking for errors". The below exception is thrown in the migration log file:

2025-08-15 11:00:00,123 ERROR [http-nio-8090-exec-60 url: /rest/migration/latest/plan; user: abc] [agent.service.catalogue.PlatformService] getAppsProgress Error when trying to get app progress for plan xxxx-xxx-xxxx-xxxx-xxxxxx.
– url: /rest/migration/latest/plan | userName: abc | referer: https://xyz/admin/migration.action | traceId: 1234567890
com.atlassian.migration.agent.okhttp.HttpServiceException: Unauthorized
at com.atlassian.migration.agent.okhttp.ServiceErrorCodeHandler.errorResponseToException(ServiceErrorCodeHandler.java:40)

Workaround

• Renew the authentication token and wait for 5-10 minutes for the existing migration plan to progress.
• If the existing migration plan doesn't progress, stop it and create a new migration plan. It should proceed as expected after the renewed token.