# Introduction Followup https://github.com/twentyhq/twenty/pull/16981 1/ Migration, applicationId and universalIdentifier are required on entity ( save point migration + upgrade command fallback pattern ) 2/ Backfill using previous standard ids
# Introduction Followup https://github.com/twentyhq/twenty/pull/16981 1/ Migration, applicationId and universalIdentifier are required on entity ( save point migration + upgrade command fallback pattern ) 2/ Backfill using previous standard ids