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`/docs/rest-api/sdk/environment/remove-a-custom-environment` does not exist. Similar pages:

- [Remove a custom environment (Vercel SDK)](/docs/rest-api/sdk/environment/remove-a-custom-environment.md): DELETE /v9/projects/{idOrName}/customenvironments/{environmentSlugOrId} Remove a custom environment for the project. Must not be named 'Production'
- [Remove a custom environment](/docs/rest-api/environment/remove-a-custom-environment.md): DELETE /v9/projects/{idOrName}/customenvironments/{environmentSlugOrId} Remove a custom environment for the project. Must not be named 'Production'
- [Remove an environment variable (Vercel SDK)](/docs/rest-api/sdk/projects/remove-an-environment-variable.md): DELETE /v9/projects/{idOrName}/env/{id} Delete a specific environment variable for a given project by passing the environment variable identifier and
- [Batch remove environment variables (Vercel SDK)](/docs/rest-api/sdk/projects/batch-remove-environment-variables.md): DELETE /v1/projects/{idOrName}/env Delete multiple environment variables for a given project in a single batch operation. Categoryprojects

All pages: [/llms.txt](/llms.txt)