After working through a variety of errors, we finally cleared the paypal diagnostics. And then have had session/cookie problems, which I then fixed.
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Now we have another problem. After I got this module working with the PayPal API certificate, our client tells us they have another site running on another server using the the API signature. I fixed this one, I broke that one. PayPal only allows you to use it one way or the other. So now we have a whole other set of problems, from lack of communication on the client's part.
I noticed that you (dynamoeffects) said several YEARS ago that you were going to look at make this module run with either the certificate or the signature. I cannot find where you did it. Is this still under consideration? I am sure there are many that use the same PayPal account for different sites, and could have different payment solutions where one used the certificate and another the signature - so they would be in this situation, also.
Any thoughts on doing this??
Thanks.