Modify Master from a voucher entry

Dear Experts,

I am trying to store value (for a UDF Field) in the Cost centre master when accepting the sales entry. It doesn't work properly. Pls check and advise how I could achieve this.

Code:

[#Line: MSTCostCentreParent]
    
Add : Field : Led Blacklist

[field:Led Blacklist]
   
    use : logical field
    Type : Logical:Forced
    Table : YesNoTable
     Set as : If $$Increatemode then  "No" Else $Blacklist
    Set Always  : Yes
    Storage:Blacklist


[System: UDF]
   
Blacklist : Logical: 140



[#Form: Sales Color]
   
On                : Form Accept    : Yes    : Call    : NGSTCCentreUpdate



[Function: NGSTCCentreUpdate]
   
Variable: CCNameName: String
   
100: Set    :CCNameName : "Vehicle-TNAB3456" ;;$CostCentreName
200: Modify Object : (CostCentre,##CCNameName).Blacklist : Yes

 

Try this

Code:

200: Modify Object : (CostCentre,##CCNameName).Blacklist.Balcklist : Yes