Merchant APP ID (Alphanumeric - Length of 32 chars and special chars $@%#)

Merchant APP KEY (Alphanumeric - Length of 32 chars and special chars $@%#)

EPI is an end point identifier, Identify the device on valor infrastructure, it's a 10 digit number starts with 2

Transaction type always should be set as 'settlement'

If the merchant has multi-MIDs, they need to send both the child EPI and the parent EPI in the EPI request