Authorize.net and Mangeto 2.3.0

[mousepad]

Has anyone got Authorize.net to work with Magento 2.3.0. Authorize.net support is just terrible and all I get when I try process an order is "A server error stopped your order from being placed. Please try to place your order again."

I have applied the new patches from Magento for Authorize.net but it doesn't help. Any ideas ?

[MazeStricks]

Hello There, 

I hope this link will guide and help you.

https://support.magento.com/hc/en-us/articles/360024368392-Update-Authorize-Net-Direct-Post-from-MD5...

Regards,
MazeStricks

[mousepad]

I did already apply the patches in that link.

I did resolve the issue. It turned out that the Authorize.net extension was creating multiple entries for the API Key in the database, so was connecting with the wrong one. I deleted all entries and set it up again and it worked.