# 602 - 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><a href="#before">Before </a></td><td>EXT_0602_1_Before</td><td>Will be executed before barcode validation;</td></tr><tr><td><a href="#replace">Replace</a></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>

### Before

*Input Parameters*

* inBarcode
* inEntityType
* inEntityNumber

*Output Parameters*

* outContinue – Return code:
  * 1 - Continue Validation
  * 0 – Cancel
* outRef<br>

### Replace

*Input Parameters*

* inBarcode – Barcode;

*Output Parameters*

* outContinue – Return code:&#x20;
  * 0- Cancel&#x20;
  * 1 - Continue
* outRef
* outDescription
* outBaseUnit
* outBarcodeQuantity