Failed to create an updated invoice in QuickBooks Online: A business validation error occurred while processing your request.

  • 10 August 2022
  • 1 reply

Hi everyone

I try to update an existing invoice to add new products with line item.


To begin and for practice I try to change the current product by an other (eg 4Kg with 12Kg)


So I use the action step (Find Product Quickbooks) ans search for “12Kg”:


And then I put the corresponding product information in the Update Invoice step like this:



When I test it I get this Error


Can you help me?


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1 reply

Userlevel 7
Badge +12

Hi @MPtr!

The error that you can see suggests that there’s something wrong with the format of the data being sent to Quickbooks, that’s usually what a validation error means. 


From the screenshot you sent of the Update Invoice step, I can’t see anything that it obviously the wrong format. For the tax code, if you click on the dropdown box is 28 one of the tax code options that you see?