> 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-1/inquiries3/602-3.md).

# 602 - (Inquiries) Barcode Validation

602 - (Inquiries) Barcode Validation

<table data-header-hidden><thead><tr><th>Event</th><th width="232.33333333333331">Extension action set</th><th>Description</th></tr></thead><tbody><tr><td><strong>Event</strong></td><td><strong>Extension action set</strong></td><td><strong>Description</strong></td></tr><tr><td>Before </td><td>EXT_0602_1_Before</td><td>Will be executed before barcode validation;</td></tr><tr><td>Replace</td><td>EXT_0602_2_Replace</td><td>Will be executed to replace barcode validation;</td></tr><tr><td>After</td><td>EXT_0602_3_After</td><td>Will be executed after barcode validation;</td></tr></tbody></table>

*Input Parameters (event before)*:

* inFilterCabDoc – Unique key of the document;&#x20;
* inBarcode – Barcode;

*Output Parameters (event before)*:

* outCanSave – Return code:
  * 1 - Continue Validation
  * 0 – Cancel

*Input Parameters (event replace)*:

* inFilterCabDoc – Unique key of the document;&#x20;
* inBarcode – Barcode;

*Output Parameters (event replace)*:

* outCanSave – Return code:&#x20;
  * 0- Cancel&#x20;
  * 1 - Done - Barcode inserted into the database, refresh list of articles to pick&#x20;
  * 2 - Continue - Normal behavior

*Input Parameters (event after)*:

* inFilterCabDoc – Unique key of the document;