> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/syslog-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/syslog-extensibility/functions-syslog-kalipso/inventory/509-filter-in-article-help-form.md).

# 509 - Filter in Article Help Form

509 - (Inventory) Filter in Article Help Form

| **Event**           | **Extension action set** | **Description**                                                               |
| ------------------- | ------------------------ | ----------------------------------------------------------------------------- |
| [Before ](#before)  | EXT\_0509\_1\_Before     | Code executed before apply filter in Articles Form                            |
| [Replace](#replace) | EXT\_0509\_2\_Replace    | Code executed to replace SQL statement to list articles in Help Articles Form |
| After               | EXT\_0509\_3\_After      | Will be executed after the article filter opens.                              |

### Before

*Input Parameters*

* inBarcode
* inFamilyCode
* inDescription
* inEntityType
* inEntityNumber
* inFilterDocumentArticles
* inFilterOnlyDocument

*Output Parameters*

* outContinue
* outRef
* outFamilyCode
* outDescription

### Replace

*Input Parameters*

* inBarcode
* inFamilyCode
* inDescription
* inEntityType
* inEntityNumber
* inFilterDocumentArticles
* inFilterOnlyDocument

*Output Parameters*

* outContinue 
* outSQL