> 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-5.1/functions-kalipso-to-mss/transportdocument/ext_transportdocument_openmodule.md).

# EXT\_TransportDocument\_OpenModule

Function to ask MSS to open transport document module.

*Input parameters:*

* n/a

*Output parameters:*

* outResultCode – Return code: 0 – Done / < 0 User canceled, or error occurred;