> 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/packing/202-packing-barcode-validation.md).

# 202 - Barcode Validation

202 - (Packing) Barcode Validation

| **Event**           | **Extension action set** | **Description**                                 |
| ------------------- | ------------------------ | ----------------------------------------------- |
| [Before ](#before)  | EXT\_0202\_1\_Before     | Will be executed before barcode validation;     |
| [Replace](#replace) | EXT\_0202\_2\_Replace    | Will be executed to replace barcode validation; |
| [After](#after)     | EXT\_0202\_3\_After      | Will be executed after barcode validation;      |

### Before

*Input Parameters*

* inFilterCabDoc – Unique key of the document; 
* inBarcode – Barcode;

*Output Parameters*

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

### Replace

*Input Parameters*

* inFilterCabDoc – Unique key of the document; 
* inBarcode – Barcode;
* inLinesSQL
* inMULTI\_DOCUMENT
* inSelectedClient
* inBoStampDocToWork
* inSelectedCabDoc
* inOriginDocType
* inCabUserFieldsList
* inLinUserFieldsList
* inDocName
* inDestinationDocSelected
* inEntityName
* inCloseLine
* inWarehouse
* inAutoMode

*Output Parameters*

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

### After

*Input Parameters*

* inFilterCabDoc – Unique key of the document;


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