I have integrated my app with card payment using a US merchant account in sandbox env, and it worked well. Now I switch to another merchant account based in AE in the sandbox env, the card payment on iOS and Android App fails and reports Error 422: UNPROCESSABLE_ENTITY.
One issue I suspect is that when integrate card payment, we did not include billing address and card owner name in the request. But this works well on the US merchant account. Is the above issue because AE merchant account does not allow for empty billing address?
