I'm using Sandbox Authorize.net and everything working fine on one of my website which is in Magento2.2.4 and currently this site is running fine with the autorize.net.
While on other site I'm using same details and this site is on Magento2.3.1 but on this site i'm getting following problem on the checkout page:-
"An error occurred while trying to report this transaction to the merchant. An e-mail has been sent to the merchant informing them of the error. The following is the result of the attempt to charge your credit card."
As i checked order get placed and order status is "pending" instead of "processing" and seems payment didn't process successfully.
When i checked Merchant Mail then getting following:-
Authorize.Net Developer Center Merchant,
Your script timed out while we were trying to post transaction results to it.
Transaction ID: 60123298125
Transaction Result: This transaction has been approved.
The following message was displayed to the customer:
------------------------------An error occurred while trying to report this transaction to the merchant. An e-mail has been sent to the merchant informing them of the error. The following is the result of the attempt to charge your credit card.
This transaction has been approved.
It is advisable for you to contact the merchant to verify that you will receive the product or service.
Here is my sandbox authorize.net settings:-
Note1:- I think,we can run multiple websites by same SANDBOX authorize.net credentials so it won't be the problem.
Note2:- Same settings and configuration is working fine on one of my M2.2.7 site.
Please help me as this is very urgent.