I am getting error "Sorry we are unable to process your payment- You seem to be entering incorrect merchant_key or salt. "

Please confirm whether you are using PayU money- PayU's wallet or PayU Biz- The payment gateway. 

If you are using PayUmoney wallet, then please ask the Juspay support team to enable PayUMoney wallet for you. Also ensure you are sending required parameters in   "/txns" call. 

If you are using PayU Biz, please ensure that the account is seamless. 

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