Failed to generate label: shipment. References: The billing preference PON is missing or its value is invalid. 'id' cannot be null. [Solution]

Modified on Thu, 16 May 2024 at 03:47 PM

When processing an order, you might run into a "Failed to generate label: shipment.References:The billing preference PON is missing or its value is invalid. 'id' cannot be null" error.



The error relates to a misconfiguration of the Billing Account of the Client you're trying to process the order.


To solve this issue you will have to:


1. Access Clients under the Maintenance menu


2. Click on the client related to the order

3. Edit the Billing Account (Carrier) related to the order and error


4. Set Reference 1 and Reference 2 either picking an option from the dropdown, or entering a fixed value



5. Press Save to apply the changes

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