---
title: "Set a subscription's usage invoice threshold"
description: "Wins over the plan's amount."
canonical_url: "https://twominutebilling.com/help/developers/api-reference/usage-controls/set-a-subscription-s-usage-invoice-threshold"
---
# Set a subscription's usage invoice threshold

> Wins over the plan's amount.

<api-operation method="PUT" path="/v1/businesses/{biz}/subscriptions/{sub}/usage_invoice_threshold">
<template v-slot:docs="">

`amount_minor: null` turns threshold invoicing off for this subscription. Needs `usage_controls:manage`.

## 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>
      The business's id (biz_…).
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        sub
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      <strong>
        yes
      </strong>
    </td>
    
    <td>
      The subscription's id (sub_…).
    </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 **required**.

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

<tbody>
  <tr>
    <td>
      <code>
        amount_minor
      </code>
    </td>
    
    <td>
      <code>
        integer
      </code>
    </td>
    
    <td>
      <strong>
        yes
      </strong>
    </td>
    
    <td>
      This subscription's amount. Null turns it off.
    </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>
        usage_invoice_threshold
      </code>
      
      . One of <code>
        usage_invoice_threshold
      </code>
      
      .
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        scope
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      The usage invoice threshold's scope. One of <code>
        plan
      </code>
      
      , <code>
        subscription
      </code>
      
      .
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        product
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      The plan's product id.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        subscription
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      sub_…
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        currency
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      ISO currency.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        amount_minor
      </code>
    </td>
    
    <td>
      <code>
        integer
      </code>
    </td>
    
    <td>
      The amount. Null = off for this subscription.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        active
      </code>
    </td>
    
    <td>
      <code>
        boolean
      </code>
    </td>
    
    <td>
      True if the usage invoice threshold is active.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        created_at
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      ISO 8601.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        updated_at
      </code>
    </td>
    
    <td>
      <code>
        string
      </code>
    </td>
    
    <td>
      ISO 8601.
    </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 threshold.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        400
      </code>
    </td>
    
    <td>
      The body is not correct.
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        404
      </code>
    </td>
    
    <td>
      No such subscription.
    </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 PUT "$TMBILLING_URL/v1/businesses/biz_XXXXXXXXXXXX01/subscriptions/sub_XXXXXXXXXXXX01/usage_invoice_threshold" \
  -H "Authorization: Bearer $TMBILLING_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
    "amount_minor": 2900
  }'
```

</template>

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

```json [200 OK]
{
  "object": "usage_invoice_threshold",
  "scope": "plan",
  "product": "pro",
  "subscription": "sub_XXXXXXXXXXXX01",
  "currency": "USD",
  "amount_minor": 2900,
  "active": false,
  "created_at": "2026-03-14T09:30:00Z",
  "updated_at": "2026-03-14T09:30:00Z"
}
```

```json [400 Bad Request]
{
  "error": {
    "type": "invalid_request_error",
    "message": "The body is not correct."
  }
}
```

```json [404 Not Found]
{
  "error": {
    "type": "invalid_request_error",
    "message": "No such subscription."
  }
}
```

```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.