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# Boarding application field explorer

> Learn how boarding application fields interact and which are required and recommended

This guide provides an interactive reference to help you understand the nuances of merchant onboarding API fields. Use the filters to explore which fields are required or recommended based on which Payabli services the merchant is applying for.

## Explorer

Use the filters and search below to explore the fields in a boarding application.

### Boarding field reference

The field explorer is a searchable, filterable reference for the fields in a merchant boarding application. You can filter by service type (Pay Ins, Managed Payouts, or On-Demand Payouts) and by requirement level (Required or Recommended). Each field shows its name, description, API path, data type, and which services require or recommend it.

Fields are organized into these groups: Application Setup, Business Information, Contact Information, Business Address, Mailing Address, Business Operations, Transaction Volumes, Payout Configuration, Owner Information, Owner Address, Bank Data, Card Services, ACH Services, ODP Services, Signer Information, Signer Address, and Compliance & Legal.

## Related resources

See these related resources to help you get the most out of Payabli.

* **[Boarding statuses reference](/guides/pay-ops-boarding-status-reference)** - Learn about statuses and substatuses during the merchant boarding process

- **[API-driven boarding quickstart](/guides/pay-ops-developer-boarding-quickstart)** - Learn to use example code to set up a custom app for boarding using the Payabli API