> For the complete documentation index, see [llms.txt](https://kb.logicerp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.logicerp.com/logic-erp-installation-configuration-and-troubleshooting-solutions/faqs/sales/search-retail-customer-by-mobile-number-in-sale-bill.md).

# Search Retail Customer by Mobile Number in Sale Bill

**YouTube:** [How to Search Retail Customer by Mobile Number in Sale Bill?](https://www.youtube.com/watch?v=NxM-F4vK2P8)

## How to Search Retail Customer by Mobile Number in Sale Bill?

In this tutorial, we’ll show you how to **quickly search for a customer using their phone number** in Logic ERP.

***

### Search Options in the Dropdown

In the **Sales Bill Window**, you’ll notice a **dropdown menu** that provides multiple options to search and identify existing retail customers.

<figure><img src="/files/hf9JB1MazWLN6ivTAyL8" alt=""><figcaption></figcaption></figure>

The **fastest and most reliable method** is by using the **mobile number**.

***

### Set Mobile Number as Default Search Filter

* Click on the **Search option**.
* Go to **Configuration**.

<figure><img src="/files/ccmVL0epgbZDdMzzsu6G" alt=""><figcaption></figcaption></figure>

* Under *Search For Dropdown*, the default is set to **First Name**.
* Change it to **Mobile Number**.

<figure><img src="/files/Ap85Sp9wm11DgJEcuwVg" alt=""><figcaption></figcaption></figure>

* Close and reopen the Sales Bill window to refresh the changes.
* Now, the **filter is set to Mobile Number by default**.

<figure><img src="/files/TgzjgSzuToiCm0xOCK1q" alt=""><figcaption></figcaption></figure>

***

### Search for an Existing Customer

* Enter the **mobile number** in the search field.
* If the customer exists, their details will automatically populate in the respective fields.
* Proceed to **generate the bill** for the customer.

<figure><img src="/files/HGk0Lehdt0COGh98jzqX" alt=""><figcaption></figcaption></figure>

***

### Add a New Customer

* If no record appears for the entered number, it means the customer is new.
* Simply enter their details and **save them to the database**.
* Proceed with **bill creation** for the new retail customer.

<figure><img src="/files/kv6NQTjBPZnZd8EpmSYb" alt=""><figcaption></figcaption></figure>

***

That’s how you can **speed up customer searches using mobile numbers** in Logic ERP.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://kb.logicerp.com/logic-erp-installation-configuration-and-troubleshooting-solutions/faqs/sales/search-retail-customer-by-mobile-number-in-sale-bill.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.