Tally ERP 9 - How to Control Negative Stock?

This TDL does not allow the user to enter the quantity, if the stock balance is less than Zero. This
TDL is used to control negative stock; it does not allow the user to enter the amount, if the stock
balance is less than Zero. Tally.ERP 9 prompts you with a warning message and the credit cash
balance in RED Color. In default this will help you to decide whether to proceed with the entry or
not. Using this TDL it won’t allow you to pass the voucher
;; This TDL and all TDLs on this blog is for educational purpose to be apply on users own risk. 
;; Make sure to take backup before applying 
;;----------------------------------------------------------------------------------
[#Part: VCFG Inventory]

    Local : Line : VCFG NegativeStock : Invisible : Yes

[#Part: ICFG Invoicing]

    Local : Line : VCFG NegativeStock : Invisible : Yes

[#Field: VCHSTKJrnl BilledQty]

    Control : NegativeStock : $$InCreateMode AND $$IsNegative:@@StockTotal
    Control : NegativeStock : $$InAlterMode AND $$IsNegative:@@StockTotal

[#Field: VCHBATCH NrmlAQty]

    Control : NegativeStock : @@IsOutwardType AND $$InCreateMode AND $$IsNegative:@@StockTotal

[#Field: VCHBATCH NrmlBQty]

    Control : NegativeStock : $$InCreateMode AND $$IsNegative:@@StockTotal
    Control : NegativeStock : $$InAlterMode AND $$IsNegative:@@StockTotal

[#Field: VCH NrmlBilledQty]

    Control : NegativeStock : @@IsOutwardType AND $$InCreateMode AND $$IsNegative:@@StockTotal

[#Field: VCH JrnlBilledQty]

    Control : NegativeStock : @@IsOutwardType AND $$InCreateMode AND $$IsNegative:@@StockTotal

[#Field: VCHBATCH BilledQty]

    Control : NegativeStock : @@IsOutwardType AND $$InCreateMode AND $$IsNegative:@@StockTotal

;; End of File