---
page_type: error
code: 21651
message: "21651: Document does not satisfy regulatory requirement"
level: ERROR
product: Phone Numbers
---

## Error - 21651

### Document does not satisfy regulatory requirement

The document being mapped to the number does not satisfy the regulatory requirements.

#### Possible Causes

- The document is the incorrect type for the number you are trying to purchase or update.
- The document does not have the correct metadata fields required for the number you are trying to purchase or update.
- The document sid is not valid.

#### Possible Solutions

- Ensure that the document you are using satisfies the regulatory requirement.
- Ensure the document sid refers to a document on your account or subaccount.
- Contact support for assistance.