Field Control by Object Type

Dear Experts,

I want to block Stock Item Creation and Alteration with specific words.
Below code works, but it also block the Ledgers.

Code:

[#Field: MST Name]
Control: MsgInvalidName: @@InvalidName

[System:Formulas]
MsgInvalidName: "Not allowed for Stock Item"
InvalidName: $Name Starting with "Damaged" OR $Name Starting with "Old"

I added $$IsStockItem to the condition, to put the restriction only on Stock Items (see below), but now, the control fails to work on both: Ledgers and Stock Items.

Code:

Control: MsgInvalidName: @@InvalidName AND $$IsStockItem

Will appreciate your help.

 

[#Field: MST Name]
InvalidName: $$Value Starting with "Damaged" OR $$value Starting with "Old"
Control: MsgInvalidName: @InvalidName
[System:Formulas]
MsgInvalidName: "Not allowed for Stock Item"

you may write any message as usaual

 

Hi Thanks for the reply.
I want to apply the control only on Stock Items, NOT on Ledgers.

 

changed $$IsStockitem to $$BaseOwner:$$Type="Stockitem"
now it works.