# SML

Service Metadata Locator used to find which SMP is responsible for a participant.

## Definition

Service Metadata Locator used to find which SMP is responsible for a participant.

## Explanation

Enables SMP discovery based on the participant identifier.

Used by Access Points during routing.

## Related resources

- [PEPPOL guide](/resources/compliance/peppol-network-guide)

## Related terms

- [SMP](/resources/glossary/smp): Service Metadata Publisher used to publish recipient capabilities in PEPPOL.
- [PEPPOL](/resources/glossary/peppol): A network and specifications for exchanging e-procurement documents, including e-invoices.
- [Access Point](/resources/glossary/access-point): Certified provider that sends/receives PEPPOL documents on your behalf.