We are trying to set up our Authorize.net sandbox account as a processing center on our Acumatica sandbox tenant, however we’re getting the below error message. I created a brand new Signature Key and Transaction Key and still when I try to test credentials I get this error.
Any ideas how to get around this? I’ve played around with TESTMODE and VALIDATION parameters and that hasn’t helped.
![](https://uploads-us-west-2.insided.com/acumatica-en/attachment/c90c59b0-bf38-4485-83d5-aa1e836193bd.png)