There is an invalid reference to QuickBooks Item Sales Tax in the Invoice.

How to update the item sales tax

Problem

Sales do not sync to QuickBooks.

Description

Connex is trying to apply a tax code on the bottom of the sale. Unfortunately, the tax code does not exist. You get this error:

Error 3140 : While trying to Add a(n) Invoice with order number of 5958, QB responded There is an invalid reference to QuickBooks Item Sales Tax "GST" in the Invoice.    

Here is the field Connex is trying to map:

Solutions

Clear the default tax code mapping

If you use QB Canada, you cannot add an item sales tax because tax is calculated on the line items:

1. Log into Connex.
2. Click sales tax.
3. Scroll down to the bottom > Under if no tax, enter select:
    
4. Click save.

Adjust mappings

You are adding a tax code that does not exist in QuickBooks. Here are the steps:

1. Login to Connex.
2. Click sales tax.
3. Under the tax mappings grid, correct your mappings.