3415331 - Error: 'Recipient role with id '/RULE/MMPUR_ACC_RESP' cannot be resolved'

• PR workflow failed after setting up workflow for Purchase Requisition account assignment A with account responsible object as the approver.
• An Asset was created, and a Cost Center has been assigned to the Asset but still getting the error.

SAP S/4HANA Cloud Public Edition

1. Set up workflow for Purchase Requisition item level with account assignment A.
2. Set account responsible object as the approver. 
3. Create a PR to trigger the workflow and check the workflow log.

The 'Person Responsible' is assigned to the Cost Center but maintain the 'User Responsible' for the profit center of the asset.

user Responsible missing, person responsible maintained , KBA , MM-FIO-PUR-REL , Fiori UI for Purchasing Approval , Problem