An administrator has updated the team member hierarchy type from Forecasts hierarchy to Manager hierarchy...

When an administrator changes the team member hierarchy type for account manager targets, the existing targets are affected by this change. The status of all existing targets becomes read-only, which means that they cannot be edited or deleted. This is to prevent any inconsistency or data loss due to the change in hierarchy. The new hierarchy type will apply only to the new targets that are created after the change. References: Choose Team Member Hierarchy for Account Manager Targets