3621519 - Error message VL 561 "Essential transfer parameters are missing in record: & &" while creating delivery in the APP Subcontracting Cockpit

Below error message occurs when creating delivery in the App 'Subcontracting Cockpit':

Error message VL561 Essential transfer parameters are missing in record: & &

SAP S/4HANA Cloud Public Edition

1. Go to the App "Subcontracting Cockpit"
2. Select the relevant line item and click on the button 'Create Delivery'
3. Select the line displayed and again select button "Create Delivery"
4. Error is displayed "Essential transfer parameters are missing in record: & &"

Account Number of Supplier for the Business Partner role as 'Customer' is not maintained in the App 'Maintain Business Partner'.

1. Open the APP Maintain Business Partner 
2. Select the Business Partner & Customer Role
3. Choose tab Customer: General Data
4. In the General Data section, maintain the Supplier

VL561, VL 561, Subcontracting Cockpit, Essential transfer parameters are missing in record: & &, outbound delivery , KBA , LE-SHP-DL-2CL , Delivery Processing (Public Cloud) , MM-PUR-GF-SC-2CL , Subcontracting (Public Cloud) , Problem