MID Structure

A two-level MID hierarchy is used for payment processing and merchant account management.
  • Account MID
    : merchant account level used for single sign-on access to a group of transacting MIDs.
    The account MID name always has an
    _acct
    suffix.
  • Transacting MID
    : MID used to run transactions.
The image below shows a two-level MID structure.