---
title: merchantIdentifier
framework: applepayontheweb
role: symbol
role_heading: Instance Property
path: applepayontheweb/applepayrequest/merchantidentifier
---

# merchantIdentifier

The merchant identifier you registered with Apple for use with Apple Pay.

## Declaration

```data
required DOMString merchantIdentifier;
```

## Discussion

Discussion This is the merchant ID you created and registered with Apple. See Configuring Your Environment for more information.

## See Also

### Identifier and version information

- [version](applepayontheweb/applepayrequest/version.md)