How do Salesforce validations fail on existing records? -

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imagine have 2 checkbox fields in account: "not programmer" , "programs java"

i can set validation rule error condition formula of: and( not_a_programmer__c = true, programs_java__c = true )

this rule won't allow me save record if both boxes checked.

but happens existing records, have both boxes checked? how error thrown, , how reported on?

i'm asking here instead of testing out because have access live environment.

validation rules execute when record saved (inserted, updated, upserted). see order of execution (#4) document details.

if want validate existing records, best method doing running report filter fields or use scheduled batch job log errors.


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