> 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/mss-extension-functions-mss-kalipso/payments-advancements/1800-payments-advancements-payments-advancements-modulentitled.md).

# 1800 - (Payments/Advancements) Payments/Advancements Modulentitled

MSS 5.0 - Extensibility - Functions MSS to Kalipso - Payments/Advancements - 1800 - (Payments/Advancements) Payments/Advancements Module

1800 - (Payments/Advancements) Payments/Advancements Module

| Event   | Extension action set  | Description                                                         |
| ------- | --------------------- | ------------------------------------------------------------------- |
| Before  | EXT\_1800\_1\_Before  | Will be executed before MSS opens the Payments/Advancements module; |
| Replace | EXT\_1800\_2\_Replace | Will replace MSS Payments/Advancements module;                      |
| After   | EXT\_1800\_3\_After   | Will be executed after closing the Payments/Advancements module;    |

*Output Parameters (event replace):*

* outOpenMSSModule – Return code: 1 – Open MSS module / 0 – Don’t open MSS module;