A sub-acquirer is a company that processes payments and transmits the generated data to the other players involved in the payment flow. Its role is similar to that of an acquirer, but it doesn't completely replace it. Thus, it can be understood as a kind of intermediary player between acquirer and store.

The main advantages of a sub-acquirer are its low implementation cost and ease of integration, which makes this a very attractive solution for small stores. On the other hand, the cost per operation is higher than those performed directly with the acquirers.

• What is an acquirer?
• Credit card - Basic payment flow