AX - Need to add sales tax to an already created invoice

I set up customer incorrectly and did not flag customer to pay sales tax. Is there a way that I can still add the sales tax to the existing invoice and still post my sales tax to GL correctly?

Correct procedure would be raising a credit note to offset existing invoice. And raising a fresh invoice with correct sales tax setup.

Regards,

As Harish said, creating a credit note is the only possible solution.