# Chain Management

[Chains in the product knowledge base](https://alteg.io/en/support/knowledge-base/4905257602333-main-chain-settings/)


Chain-level operations for managing multiple locations within a business chain.


## Obtaining chains available to the user

 - [GET /v1/groups](https://developer.alteg.io/en/chain-management/get_chain_list.md): The location chain object has the following fields:

| Field | Type | Description |
| ------------- | ------------- | ------------- |
| id | number | Location chain ID |
| title | string | Location chain name |
| locations | array | List of chain locations |
| access | object | Object with access rights for chain management |

## Get a chain client by phone number.

 - [GET /v1/group/{chain_id}/clients](https://developer.alteg.io/en/chain-management/get_chain_client_by_phone_number.md): + Parameter
    + group_id (required, number, 43877) - ID of the location chain


#### Client filtering
+ phone:'+13155550175' (optional, string) - Phone to filter clients