I have a text field, NAV_Customer_ID, that is been active in our org for years now. I am trying to put in a validation rule that this now has to be in all caps, but I am getting an error message on syntax (Error: Field NAV_Customer_ID does not exist. Check spelling.)

NAV_Customer_ID__c <> UPPER(NAV_Customer_ID)

2 Answers 2


NAV_Customer_ID__c <> UPPER( NAV_Customer_ID__c )


Try the following :

NAV_Customer_ID__c <> UPPER(NAV_Customer_ID__c)

The field name is incorrect while passing it to the UPPER function

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .