The On Demand Migration for SharePoint service can repair lists with the Migration state = Migrated with Issues. When such a list is migrated, the contents of the list in the source and target tenants are compared. Missing items in the target are restored and items that are updated in the source since the previous migration will be incrementally migrated.

Lists are migrated based on the Migration state. You can select multiple lists with different migration states and the lists will be migrated based on its state. For example, an incremental migration will occur if new list items were added to a source list that was previously migrated, a repair migration will occur if the list was migrated with issues, and a full migration will occur for lists that have not been migrated.

To repair a list with migration issues:

1. Open the SharePoint contents tab and locate the SharePoint list as described below:
   1. Clear all filters and search criteria Add a filter to show only objects of type List.
   2. Add a filter to show only objects where Type = List and Migration state = Migrated with Issues.
2. Select the list. You can select multiple lists if needed.
3. Click Migrate. The New SharePoint Migration Task wizard opens.
4. See Migrating SharePoint Objects for more details.
5. When the task completes, verify the migration state for the selected list. If issues persist, check for event warnings.