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Not allow to Manual data enter in ABAP Screen field

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Hi SDn's

 

 

i have a requirement  with Barcode Scan .I created a screen to scan the barcode content with enable mode (if disable scanner not reading)  so it's working fine.  But there is a chance user can enter same barcode content manually so,i don't  allowing to manual input in Modulepool screen field .

 

 

Is there any keyword to get data entering start time & endtime ,because through scanner data is reading with in fraction of seconds ,But for manual typing it's take some more time   so that i can easily identify data getting from through scanner or manual type......

 

 

plese help me any one   ..........

 

i am facing problem from last two months still i didn't get any solution   ......

 

 

 

Thanks & regards,

Suba.


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