I am currently using barcode separation for document separation. Can I also capture the value of the same barcode by using page level barcode recognition?
Yes, both separation and page level barcode recognition can happen on the same barcode. This allows you to separate and populate an index field with the barcode value at scan time.
To enable this functionality, open administration module and then the properties of the batch class. Then move to the tab "Advanced" and enable Scan Options "Populate default index fields at Scan" as also Bar Code and Patch Code Options "Retain bar codes and patch codes on all pages".
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Article # 3031071