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Título
Office 365 tenant migration the calendar items when rescheduled are being updated 'on behalf of' the original mailbox owner. -
Descripción
When using On Demand Migrator for Email (ODME) to migrate calendar items for an Office 365 tenant migration. The calendar items when modified are showing source mailbox as the owner of the calendar item and changes are made 'on behalf of' the source mailbox email address.
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Causa
Migrated calendar items are a copy of their state from the source email environment when the migration occurred. This is by design for ODME Office 365 to Office 365 migrations. -
Resolución
Migrated calendar items that require to be rescheduled or modified should be recreated. ODME doesn't update the ownership of calendar items when ODME copies the calendar items into the new mailbox.