> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tesouro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ApplicationParticipantRole

> The role of a participant in a boarding application, identifying their relationship to the transaction processing hierarchy.

`ENUM`

The role of a participant in a boarding application, identifying their relationship to the transaction processing hierarchy.

## Values

<ResponseField name="BANK" type="enum">
  A sponsor bank that provides the underlying banking infrastructure and regulatory umbrella for
  payment processing.
</ResponseField>

<ResponseField name="ISO" type="enum">
  An Independent Sales Organization (ISO) that acts as an intermediary between the sponsor bank and
  the acceptor.
</ResponseField>

<ResponseField name="TRANSACTOR" type="enum">
  A transactor such as a payment facilitator or marketplace that directly processes transactions on
  behalf of acceptors.
</ResponseField>