Users can preserve Account Team Members while changing records from the UI. However, during mass owner change via Dataloader on the Account Object, there is no option to keep the Account Team Members.
This official data-loader instruction doesn't work either: Data Loader Keep Account Team
Officially suggested workarounds: Retaining Account Team
So, my initial thought is that we can implement Trigger, which will hold all the Account Team Members before changing the Account Ownership and, later on, inserting them. Not sure if it would be a good idea to do the same using the Flow Builder.
I would like to know if anyone has already implemented it or what kind of implementation would be best for the bulk Account Owner Change.
Thanks in advance.