> 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/document/ext_document_cancel.md).

# EXT\_Document\_Cancel

Function to ask MSS to cancel a document.

*Input parameters*:

* inDocumentExercise – Exercise of the document;
* inDocumentType – Type of the document;
* inDocumentSeries – Series of the document;
* inDocumentNumber – Number of the document;
* inCancelCode – If not empty MSS will cancel the document with this motive code, otherwise will open MSS cancel motive selection window;

*Output parameters*:

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