Behavior of Manual vs. Flow-Based Territory Assignment on Opportunity Records.

• Scenario 1 – Manual Territory Selection
  When a territory is manually assigned on the Opportunity record, Salesforce categorizes this as manual sharing. The assigned child territory (e.g., child territory record) is visible on the record itself. However, under the Sharing option, the parent territory (e.g., parent territory record) is displayed.

• Scenario 2 – Flow-Based Territory Assignment
  When the territory value is updated automatically via a Flow, Salesforce still categorizes this as manual sharing. On the Opportunity record, the assigned child territory (e.g., child territory record)) is displayed, while the Sharing option again shows the parent territory (e.g., parent territory record).

When a territory is assigned to an opportunity (each opportunity can only have one single territory assigned), the access is granted to the parent territory of the assigned territory, under territory management, when a territory is assigned to an opportunity, the parent territory would be granted Read Only access with reason code "Territory assignment for forecasting and reporting