How can I change my API Login and Transaction Key?

Please help!!

We have created a few forms and need to link the payment screen to our authorize.net account.  Where do I enter our transaction key??

In your form https://www.jotformpro.com/form/60175895406967 select the Payment field and then click on the magic wand like icon to open the configuration screen.

You can then now update/change the Authorize.net account credentials. Save the changes afterwards.

Let us know if this did not work.