that could be the problem i did exactly what they ask for and they don't even tell me the errors

• Create a validation rule:
  • Rule Name: Contact_must_be_in_Account_ZIP_Code
  • Operator: AND (return true if both conditions are true)
  • Define the two conditions that, combined, will show the error message:
    • The contact is associated with an account id
    • The contact mailing zip code is different than the account shipping zip code 
      Hint: Use the API names (
      MailingPostalCode and Account.ShippingPostalCode) and the <> (Not Equal) operator.
  • Enter an error message for the validation rule

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My Trailhead Playground 1 

Last used on 2/25/2025 

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