> For the complete documentation index, see [llms.txt](https://docs.360dialog.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.360dialog.com/docs/messaging-api/api-reference/contact-book.md).

# Contact Book

Endpoints for managing contact book entries of business-scoped user IDs

## Delete a contact book entry

> Delete the contact book entry of a business-scoped user ID (BSUID) on your WhatsApp Business phone number. The BSUID must belong to the same business portfolio as the phone number; parent BSUIDs are not supported.

```json
{"openapi":"3.1.0","info":{"title":"Messaging API","version":"1.50.0"},"tags":[{"name":"Contact Book","description":"Endpoints for managing contact book entries of business-scoped user IDs"}],"servers":[{"description":"Production server","url":"https://waba-v2.360dialog.io"}],"security":[{"D360-API-KEY":[]}],"components":{"securitySchemes":{"D360-API-KEY":{"description":"API Key for Messaging API authentication. Send your API key in the D360-API-KEY header.","in":"header","name":"D360-API-KEY","type":"apiKey"}},"schemas":{"contact_book.DeleteContactBookEntryResponse":{"description":"Response payload for deleting a contact book entry","properties":{"deleted":{"type":"boolean"},"messaging_product":{"type":"string"},"success":{"type":"boolean"}},"type":"object"},"contact_book.DeleteContactBookEntryErrorResponse":{"description":"Generic Meta error response for contact book operations. Exact message, code, subcode, and details vary by failure reason.","properties":{"error":{"$ref":"#/components/schemas/contact_book.ContactBookAPIError"}},"type":"object"},"contact_book.ContactBookAPIError":{"properties":{"code":{"type":"integer"},"error_data":{"$ref":"#/components/schemas/contact_book.ContactBookErrorData"},"error_subcode":{"type":"integer"},"fbtrace_id":{"type":"string"},"message":{"type":"string"},"type":{"type":"string"}},"type":"object"},"contact_book.ContactBookErrorData":{"properties":{"details":{"type":"string"},"messaging_product":{"type":"string"}},"type":"object"},"utils.ErrorResp":{"properties":{"error":{"type":"string"}},"type":"object"}}},"paths":{"/contact_book":{"delete":{"description":"Delete the contact book entry of a business-scoped user ID (BSUID) on your WhatsApp Business phone number. The BSUID must belong to the same business portfolio as the phone number; parent BSUIDs are not supported.","operationId":"delete-contact-book-entry","parameters":[{"description":"Messaging product. Must be 'whatsapp'","in":"query","name":"messaging_product","required":true,"schema":{"default":"whatsapp","type":"string"}},{"description":"BSUID of the contact book entry to delete, in standard format","in":"query","name":"bsuid","required":true,"schema":{"type":"string"}}],"responses":{"200":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contact_book.DeleteContactBookEntryResponse"}}},"description":"Contact book entry deletion request processed successfully"},"400":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/contact_book.DeleteContactBookEntryErrorResponse"}}},"description":"Meta API error with operation-specific code and details"},"401":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/utils.ErrorResp"}}},"description":"Unauthorized"},"500":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/utils.ErrorResp"}}},"description":"Internal server error"}},"summary":"Delete a contact book entry","tags":["Contact Book"]}}}}
```


---

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```
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