# What is the format of the Phone number field to be used in the payload?

The phone number must be provided as a **12-digit string**, which includes the **2-digit country code** followed by the **10-digit mobile number** (e.g., *91XXXXXXXXXX* for India).&#x20;

This phone number value can also be then be **SHA-256 hashed** (in lowercase hex format) before being shared in the payload.

**Example:**

* Raw phone number: `911234567891`
* SHA-256 Hash: efc187bdaca8e73ddffb1b4615e9652bb775721335bc97f47888dfebd9058444

**Important Notes:**

* **No plus sign (+)** should be included before the country code.
* Ensure the number is exactly 12 digits *before* hashing.
* The hashed output must be passed as a string in the payload.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.truecaller.com/truecaller-for-business/verified-campaigns/faqs/what-is-the-format-of-the-phone-number-field-to-be-used-in-the-payload.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
