The smartSend API is used to process the uploaded .csv/.xlsx/.xls file from the dashboard. You need to use the Bulk File Upload API to upload the file containing the Smart Send Links. For more information, refer to Bulk File Upload API.
HTTP Method: POST
String Specify the access token generated earlier in this parameter.
String Specify the payout merchant id provided while onboarding or creating Payout account.
String Indicates the format in which the request is sent.
The pid is payoutMerchantId, however it is different from the PayU merchant id. Check the Payouts Dashboard or call the PayU Customer Support if you don’t know your payoutsMerchantID.