SLA source of receiver task owning organization for interproject contract

Summary:

We need to confirm the source of the receiver task owning organization for revenue accounting on interproject contracts. We are unable to identify this attribute in the SLA source. Can you confirm whether this data point is available as an SLA source, and if so, what the exact source field name is?

We also see Contract Line Receiver Task ID available as a SLA Source. Please explain how this field should be used in the accounting flow and whether it can be leveraged to derive receiver task owning organization DFF Attribute9. If derivation is possible, please provide the logic or mapping approach.