When performing a Teams Provision task in On Demand Migration (ODM), after the initial Teams Provision task, you may encounter the following error:
Request failed with NotFound status code (Not Found).
{"errorCode":404,"message":"{\r\n \"subCode\": \"SoftDeleted\",\r\n \"details\": \"Thread was not found as it is soft-deleted.\",\r\n \"errorCode\": null,\r\n \"errorSubCode\": null\r\n}"}
Clear the Deleted Team from the recycle bin and then provision the Team again.
Make sure to check the source and target Team and it's channels to see if the referenced object(s) can still be found.