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hosted payment form working on sandbox, but production with correct merchant I am getting 550 err

hosted payment form working on the sandbox, but I am getting 550 error in production with correct merchant while payment with real card.
Whenever I try to use a test card, I get the response "This card is not accepted".

Do I need to configure anything in the merchant end? Or something else?

Thanks in advance.

abird9797
Member
1 REPLY 1
marine2026
Regular Contributor