# Roles you can play

The Transaction layer of a Beckn-enabled OGa network is the abstraction that encompasses the network actors and the transactions that occur between them. The Transaction layer itself has three distinct parts:

* **Demand side** — the consumer-facing platforms called “Beckn Application Platforms” or, for short, “BAPs”
* **Supply side** — the Seller-facing platforms called “Beckn Provider Platforms” or, “BPPs”
* **Routing infrastructure** — the entities between the supply and demand sides, called of “Beckn Gateways” or “BGs”, which connect the BAPs and the BPPS

To read in depth and understand the architecture, click here: <https://developers.becknprotocol.io/docs/introduction/transactional-layer/>


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