> ## Documentation Index
> Fetch the complete documentation index at: https://developers.tassyir.io/llms.txt
> Use this file to discover all available pages before exploring further.

# SUBSCRIPTION_REQUIRED

> HTTP 422, from 3 operations of the Admin API.

Its problem `type`: `https://developers.tassyir.io/errors/subscription-required`.

## What to do

HTTP 422. The route needs a plan, and the business has no usable subscription.
Tell the merchant.

## Answered by

HTTP 422, from:

* [`GET /inventory-levels`](/api-reference/admin/inventory/list-stock-levels)
* [`GET /inventory-levels/{id}`](/api-reference/admin/inventory/get-a-stock-level)
* [`POST /inventory-levels/{id}/adjust`](/api-reference/admin/inventory/correct-a-stock-count)

The shape of every problem, and how `@tassyir/app` reports it: [Errors](/guides/errors).


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