> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/mss-extensibility/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/mss-extensibility/mss-5.0/untitled-1/customer.md).

# Customer

| Extension                                                                                      | Description                                                |
| ---------------------------------------------------------------------------------------------- | ---------------------------------------------------------- |
| [EXT\_Customer\_Record](/mss-extensibility/mss-5.0/untitled-1/customer/ext_customer_record.md) | Function to ask MSS to open MSS customer record screen.    |
| [EXT\_Customer\_Select](/mss-extensibility/mss-5.0/untitled-1/customer/ext_customer_select.md) | Function to ask MSS to open the customer selection screen. |