> 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.md).

# TransportDocument

| Extension                          | Description                                            |
| ---------------------------------- | ------------------------------------------------------ |
| EXT\_TransportDocument\_OpenModule | Function to ask MSS to open transport document module. |