"HardError: UPS account number that was provided as Freight Collect billing method cannot be the same as the Shipper Number.:" error will prompt if Account Number fields were filled with the same Account Number for both Recipient and Sender Payor Type.
1. In the Shipment Form, drill down in Payor Information.
A. Sender Account Number will come from Carrier Plugin Setup
B. Recipient Payor Type should not share the same Account Number with the Sender Payor Type.
2. Check and Change Account Number filled in Recipient Payor Type.
3. Once changed, click Get Label. You will now be able to process shipping labels.
Connected Business 13 and lower