I was trying to make payment but getting error like "An error occurred during processing. Call Merchant Service Provider.". I have chosen demo credit card number with CVV code (123).
Please let me know can we test payment transaction with demo credit card number for merchant account.
If someone have the answer of my question. Please let me know.
Is this in the sandbox environment or in production?
In sandbox, any card number that looks valid (i.e. starts with the right number(s), has the right length, and passes the Luhn MOD 10 check) should be accepted and approved. So, if you're getting this error in sandbox, please let us know more about the request and what you might be sending that might trigger this error.
If you're doing this in production, a test or demo card number isn't going to work. A production account is configure to charge live cards, and you should only expect an actual working card to get approved.