To load the assignment supervisor we will use Worker.dat template.
You can see step by step video to load assignment supervisor using this Link
Please find the below sample template :
METADATA|AssignmentSupervisor|AssignmentId(SourceSystemId)|SourceSystemOwner|SourceSystemId|EffectiveStartDate|EffectiveEndDate|ManagerAssignmentId(SourceSystemId)|ManagerId(SourceSystemId)|ManagerType|PersonId(SourceSystemId)|PrimaryFlag
MERGE|AssignmentSupervisor|XXTEST_ASSIGN2|XXTEST|XXTEST_MANAGER1|2018/01/01|4712/12/31|XXTEST_ASSIGN1|XXTEST_PER1|LINE_MANAGER|XXTEST_PER2|Y
