A Merchant Identification is a Unique Number Offered to the Merchant by the Payment Processor. This may be numeric or Alphanumeric. Merchant must remember this number as its very critical for the operation of the processing account. This number is also used while integrating the merchant's website with the PSP Payment gateway interface.
In the integration process, the most common elements that are needed are listed below
Merchant Identification Number/MID/Merchant ID
Salt ID /Secure Key/Authentication Key
Approved Return URL
Decline Return URL
There are few places where you can locate the Merchant Identification Number
In the Merchant Account Dashboard Profile section
In the Processing statement
In the approval agreement that you may have received from the acquirer
Need any help with any Merchant account provided by our Partner PSP then feel free to ring us.