> ## Documentation Index
> Fetch the complete documentation index at: https://voucherify-pw-further-tests.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Delete Metadata Schema

> Deletes permanently the metadata schema.

In standard metadata schemas, this endpoint removes permanently all definitions. The standard metadata schemas are:
- Campaign
- Voucher
- Publication
- Redemption
- Product
- Customer
- Order
- Order line item
- Loyalty Tier
- Promotion Tier
- Earning rule
- Reward

If you want to delete only one definition, use the [Update Metadata Schema](ref:update-metadata-schema) endpoint. In the request, provide the `"deleted": true` pair in the definition object. This definition will be moved to Removed definitions.

If you want to create a new standard metadata schema, use the [Create Metadata Schema](ref:create-metadata-schema) endpoint.

> 🚧 Metadata Purging
>
>This endpoint deletes permanently the metadata schemas only. However, it does not purge the metadata from associated entities, so the metadata added to those entities will remain.
>
>If you want to purge metadata from the entities:
>1. Remove all the definitions you want to purge. You can do this either in Voucherify Project Settings > Metadata Schema tab or with the [Update Metadata Schema](ref:update-metadata-schema) endpoint.
>2. In Voucherify Project Settings > Metadata Schema tab, go to the relevant metadata schema.
>3. In Removed definitions, click the bin button next to the definitions whose metadata you want to purge from entities.
>Note:
>- This is an asynchronous action. You will be notified when it has been completed.
>- You cannot purge metadata for the Redemption and Publication schemas.
>4. Use the Delete Metadata Schema request to delete the metadata schema from Voucherify.

> 📘 Metadata Documentation
>
> Read [the Getting Started with Metadata](https://support.voucherify.io/article/99-schema-validation-metadata) and [Metadata Mapping](doc:metadata-mapping) articles to learn how metadata work in Voucherify.