Smart Rule Zip Code Mandatory - Sage Intacct

[Jean-Yves STURM]

Hi Team

Im trying to create a simple SmartRule, I want to make the Vendor ZIP CODE mandatory. This is my criteria:

 

Object to extend = Vendor

 

Type = Error

Events = Add, Set

Condition:

{!VENDOR.MELOCATION.CONTACT.MAILADDRESS.ZIP!} == ' '

 

Error message=The Postal Code field is required. Please enter a postal code.

 

Do you notice something wrong? When I edit the vendor with an empty value in ZIP CODE and try to save it again, I have my error message (fine) but when I edit it again and enter a value for ZIP CODE and save again, im still having the error.

I think I dont have the correct field but Ive tried so many field IDs regarding ZIP CODE and can't find out the solution

 

Would appreciate your help on this one