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

# \_getByAccountNumber

Returns the Customer ID

### Parameters

#### account\_number

The account\_number of the Customer

### Example

```
FM_api('Customer_getByAccountNumber', ['account_number'=>'125']);
```

#### On Success

```
{"id":"22"}
```