How to Configure Both Receiver and Provider Organization Approvals for Intercompany Transactions?

We have a client requirement to configure Intercompany transaction approval based on both the Receiver and Provider Intercompany Organizations. The transaction should be completed only after approvals are received from both parties.

We are currently using the seeded BPM task FinFunTransactionApproval and the participant/rule set InboundTransactionParallelApprovalRuleSet.

• We were able to configure and return approvers based on the Receiver Organization.
• However, we are unable to return the expected approvers based on the Provider Organization.
• We also added a separate rule-based participant and fallback rules for the Provider Organization, but the expected results were not returned.
• In the Assignees configuration, the Receiver and Provider participants appear as parallel branches.