Negative Stock Control

Dear Sir,

I have uploaded negative Stock control TDL.

But User can bypass this control using backspace key. they just enter the Qty and go back to Ref. field using backspace key. After that they will save the voucher by click amount total filed.

how we can stop that?

Rgds,

Arun

 

[#Field: VCHBATCH JrnlBQty]
Control: Test Control: @@Testing AND @@IsOutWard And NOT $$IsCmpOwner OR $$InCreateMode

OR $$InAlterMode

[#Field: VCH NrmlActualQty]
Control: Test Control: @@Testing AND @@IsOutWard AND NOT $$IsCmpOwner OR $$InCreateMode

OR $$InAlterMode

[#Field: VCH NrmlBilledQty]
Control: Test Control: @@Testing AND @@IsOutWard AND NOT $$IsCmpOwner OR $$InCreateMode

OR $$InAlterMode

[#Field: VCH JrnlBilledQty]
Control: Test Control: @@Testing AND @@IsOutWard AND NOT $$IsCmpOwner OR $$InCreateMode

OR $$InAlterMode

[#Field: VCHBATCH NrmlBQty]
Control: Test Control: @@Testing AND @@IsOutWard AND NOT $$IsCmpOwner OR $$InCreateMode

OR $$InAlterMode


[System : Formula]

Testing : $$IsNegative@FinalStockTotal
Test Control:"Hi "+##SVUserName+" !!! "+$$NewLine+"Negative Stock"+$$NewLine+"entry not allowed

for"+$$NewLine+" Stock Item : " + $StockItemName

 

I want block my stock by location, so that you can not sell to negative