Synchronization of Teams & Chats is
unlimited.
1) Messages
Messages that were previously migrated successfully will not be remigrated. Messages are remigrated as follows:
- New messages that are added since the last synchronization will be migrated.
- Messages that were partially migrated, for example the attachment was unavailable during a previous migration, will be migrated. Updates to these messages by users in the target tenant will not be overwritten.
2) Planner Tasks
Planner Tasks in the target tenant that are created or updated will not be impacted. Planner Tasks from the source tenant will be remigrated as follows:
- Previously migrated Planner Tasks that are updated on the source tenant will not be migrated to the target tenant.
- New Planner Tasks will be migrated to the target tenant.
3) Files
Previously migrated list items and files with the same name and ID will be remigrated from the source tenant as follows:
- Updates on source will be migrated to the target.
- Updates to target will be overwritten by the remigrated source items or files.
When Teams files are remigrated, an incremental query retrieves files that have been added or changed in the channels since the last synchronization. Follow the steps outlined in Migrating Teams and select Migrate messages and files.
4) Chats
Chats can be migrated multiple times. During remigration, new messages are added to previously migrated live chats in the target, and new chats that were not migrated before are migrated.
