# Remove a Card Number

> Solarium docs, Accounts. All requests are `POST https://api.trysolarium.com/graphql/` with `Authorization: Bearer <api key>` and a JSON body `{"query": ..., "variables": ...}`. Every query and mutation takes an `organizationId` (find it with `myOrganizations`). Index of all pages: https://trysolarium.com/llms.txt

Forgets a manually added card number. Numbers that come from a connected bank (Plaid) are managed by the bank connection and can't be removed here.

### Arguments

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `accountId` | `UUID!` | Yes | The card or bank account |
| `lastFour` | `String!` | Yes | The manually added number to remove |

### Request

```graphql
mutation {
  removeCardNumber(accountId: "c3d4e5f6-...", lastFour: "6659") {
    success
    error
  }
}
```

### Response

```json
{
  "data": {
    "removeCardNumber": { "success": true, "error": null }
  }
}
```