Additional Charges causes paypal error?
I am using the eCart version 5.0.3
I have had a working cart for a while but I just added an additional charge option using the Charges tab in the ecart object window. Everything still works unless the additional charge is added to the cart and then it causes Paypal to return an error preventing payment (both Express & Pro checkout).
I assume this is because the total charge amount and product line item amount is not adding up due to the additional charge.
Any ideas what this could be?