Introduction
A "collector step" can be Online validated During the registration as opposed to during posting.
Following is standard collector steps are supported
- Lot number
- Serial number
- Quantity
From Bin
To Bin
Tote
Online Validation limits the Offline capabilities of the system.
How to enable
Using Android 
Lot number validation
Modify the application.cfg
Add the "<validation>" tag.
</service>
<service id="Pick" type="Order" orderType="Pick">
<validation>
<lotNumberValidation online="true"/>
</validation>
<requests>
..
</requests>
</service>
Serial number validation
Todo
Quantity validation
Todo
Using Windows 
Lot number validation
The code snippet below shows how to enable online lot number validation.
Modify the app.config file
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<lotNumber>
<!-- By default online validation is disabled, thus 'enabled=false' -->
<online enabled="true"/>
</lotNumber>
</validation>
</configuration>
Changing the request document name
By default the application will call the document ValidateLotNumber in the ERP system. It is, however, possible to override the name if another document handler should be invoked.
Overriding the Document Name of the Request
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<lotNumber>
<!--
It is possible to override the name of the document the application will call in the ERP system.
By ommision it will default to the value 'ValidateLotNumber'.
-->
<online enabled="true" requestDocumentName="ValidateLotNumberExtended"/>
</lotNumber>
</validation>
</configuration>
Serial number validation
Validation scope
It is possible to tweak how restrictive the application is when it comes to validating serial numbers.
Setting Validation Scope
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<!--
ITEM: The same serial number can only be registered once per item, but multiple times across items.
LINE: A serial number can only be registered once per order line, but multiple times per order.
ORDER (default by ommission): A serial number can only be registered once per order.
-->
<serialNumber mode="ORDER" />
</validation>
</configuration>
Online validation
Enabling online serial number validation is near identical to enabling lot number validation.
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<serialNumber>
<!-- By default online validation is disabled, thus 'enabled="false"' -->
<online enabled="true"/>
</serialNumber>
</validation>
</configuration>
Changing the request document name
Overriding the Document Name of the Request
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<serialNumber>
<!--
It is possible to override the name of the document the application will call in the ERP system.
By default it will assume the value 'GetSerialNumberInformation'.
-->
<online enabled="true" requestDocumentName="GetSerialNumberInformationExtended"/>
</serialNumber>
</validation>
</configuration>
Quantity validation
<configuration xmlns="http://schemas.taskletfactory.com/MDMF/MobileWMS/Services/2009/01/ServiceConfiguration.xsd">
<ServiceType>Pick</ServiceType>
...
<validation>
<quantity enabled="true" requestDocumentName="ValidateQuantity"/>
</validation>
</configuration>