---
title: "Override every rule that produces one canonical code"
description: "The SECOND level."
canonical_url: "https://twominutebilling.com/help/developers/api-reference/payments/override-every-rule-that-produces-one-canonical"
---
# Override every rule that produces one canonical code

> The SECOND level.

<api-operation method="PATCH" path="/v1/businesses/{biz}/decline_codes/{code}">
<template v-slot:docs="">

A code-level setting reaches every rule meaning the same thing — including the codes no rule names — but does NOT touch a rule that has its own setting, because the narrower one wins. Separate paths from `decline_rules` on purpose: a rule id and a canonical code are different namespaces, and collapsing them would let a typo in one silently address the other.

## Path parameters

<table>
<thead>
  <tr>
    <th>
      Parameter
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Required
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        biz
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      <strong>
        yes
      </strong>
    </td>
    
    <td>
      Business id (biz_…)
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        code
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      <strong>
        yes
      </strong>
    </td>
    
    <td>
      e.g. expired_card
    </td>
  </tr>
</tbody>
</table>

## Headers

<table>
<thead>
  <tr>
    <th>
      Parameter
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Required
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        Idempotency-Key
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      no
    </td>
    
    <td>
      Safely retry writes — repeats return the original response. If a write FAILED after it had already taken effect, that failure is what repeats: the key is spent, and a new attempt needs a new key.
    </td>
  </tr>
</tbody>
</table>

## Body

The request body is optional.

<table>
<thead>
  <tr>
    <th>
      Field
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Required
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        retriable
      </code>
    </td>
    
    <td>
      <code>
        boolean
      </code>
    </td>
    
    <td>
      no
    </td>
    
    <td>
      Whether a charge that fails with this code can succeed on a retry.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        message
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      no
    </td>
    
    <td>
      The message shown for a failure with this code.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        exposed_to_payer
      </code>
    </td>
    
    <td>
      <code>
        boolean
      </code>
    </td>
    
    <td>
      no
    </td>
    
    <td>
      Whether the message is shown to the payer.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        gateway_account
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      no
    </td>
    
    <td>
      The gateway account the override applies to (gwa_…).
    </td>
  </tr>
</tbody>
</table>

## Response

<table>
<thead>
  <tr>
    <th>
      Field
    </th>
    
    <th>
      Type
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        object
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      The object type; always <code>
        decline_code
      </code>
      
      . One of <code>
        decline_code
      </code>
      
      .
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        code
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      The gateway's decline code.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        rules
      </code>
    </td>
    
    <td>
      <code>
        array of object
      </code>
    </td>
    
    <td>
      The rules the code matches.
    </td>
  </tr>
</tbody>
</table>

## Status codes

<table>
<thead>
  <tr>
    <th>
      Status
    </th>
    
    <th>
      Meaning
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        200
      </code>
    </td>
    
    <td>
      The setting, with every rule it now covers
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        400
      </code>
    </td>
    
    <td>
      Invalid body
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        404
      </code>
    </td>
    
    <td>
      Not a canonical code we produce, or no such business or gateway account
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        409
      </code>
    </td>
    
    <td>
      Idempotency-Key conflict — the key is already in flight, or was reused with a different request payload.
    </td>
  </tr>
</tbody>
</table>
</template>

<template v-slot:request="">

```bash [Request]
curl -X PATCH "$TMBILLING_URL/v1/businesses/biz_XXXXXXXXXXXX01/decline_codes/expired_card" \
  -H "Authorization: Bearer $TMBILLING_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
    "retriable": false,
    "message": "Requested by the customer."
  }'
```

</template>

<template v-slot:response="">
<code-group>

```json [200 OK]
{
  "object": "decline_code",
  "code": "welcome-10",
  "rules": [
    {
      "object": "decline_rule",
      "id": "stripe.code.expired_card",
      "overridable": false,
      "gateway": "stripe",
      "matches": {
        "field": "email",
        "op": "eq",
        "value": "West"
      },
      "code": "expired_card"
    }
  ]
}
```

```json [400 Bad Request]
{
  "error": {
    "type": "invalid_request_error",
    "message": "Invalid body"
  }
}
```

```json [404 Not Found]
{
  "error": {
    "type": "invalid_request_error",
    "message": "Not a canonical code we produce, or no such business or gateway account"
  }
}
```

```json [409 Conflict]
{
  "error": {
    "type": "idempotency_error",
    "message": "Idempotency-Key conflict — the key is already in flight, or was reused with a different request payload."
  }
}
```

</code-group>
</template>
</api-operation>


## Sitemap

See the full [sitemap](https://twominutebilling.com/sitemap.md) for all pages.