Validation rule: Probability_Non_Editable_for_Won_Lost

Name

Probability_Non_Editable_for_Won_Lost

Label

Probability_Non_Editable_for_Won_Lost

Object

Opportunity

Active

No

Formula

OR(
AND(ISPICKVAL( StageName , 'Closed Won'), Probability <> 100),
AND(ISPICKVAL( StageName , 'Closed Lost'), Probability <> 0)
)

Error message

The probaility field cant be manually changed if the stage is 'Closed Won/Lost'

Error location

Probability (%)

Description

The probability field shouldnt be manually editable after opportunity is Closed Won/Closed Lost.