# connectMasterAccount

Connects this account as a sub-account of a master/partner account using a promo code.

```
connectMasterAccount(

  promoCode: String!

  externalId: String

  externalHash: String

): Account!
```

### Arguments[​](#arguments "Direct link to Arguments")

#### [`connectMasterAccount.promoCode`](#promo-code) ● [`String!`](https://docs.monei.com/apis/graphql/types/scalars/string/.md) non-null scalar[​](#promo-code "Direct link to promo-code")

#### [`connectMasterAccount.externalId`](#external-id) ● [`String`](https://docs.monei.com/apis/graphql/types/scalars/string/.md) scalar[​](#external-id "Direct link to external-id")

#### [`connectMasterAccount.externalHash`](#external-hash) ● [`String`](https://docs.monei.com/apis/graphql/types/scalars/string/.md) scalar[​](#external-hash "Direct link to external-hash")

### Type[​](#type "Direct link to Type")

#### [`Account`](https://docs.monei.com/apis/graphql/types/objects/account/.md) object[​](#account- "Direct link to account-")

Merchant account.