Is the gform_paypal_post_ipn hook called when using the PayPal sandbox?
Is the gform_paypal_post_ipn hook called when using the PayPal sandbox?
I believe it is. I have used the sandbox for all my PayPal transactions, and it looks like the IPN is working because I am seeing the status update. Are you having a problem receiving the IPN when using the sandbox?
I just realized I did not answer your question exactly. Are you having trouble with the gform_paypal_post_ipn hook when using the sandbox?