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    What is the usage of merchant key and is it used as parameter for the checksum generation?

    Merchant key (Secure key) is used to generate and verify checksum only and is not to be sent as any parameter to PG (payment gateway). This should not be shared with anyone.

    OTHER TOPICS
    What is Checksum and how is it generated and verified?
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    What is the usage of merchant key and is it used as parameter for the checksum generation?
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    Why am I getting a Checksum mismatch/Invalid checksum in the response from Paytm?
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    For Android and iOS, how will the checksum generated.
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