I am trying to transfer reference information from one custom object to another. The name of the field I am trying to transfer is "Able to Mention Customer's Name". The picklist values for this field are Yes, No, Pending. 

I would like the value of this field to be updated into the field "Contract Allows External Use?"

Below is my formula. Any advice with what I am doing wrong is greatly appreciated. 

CASE( Customer_Information__r.Able_to_Mention_Customer_Name__c ,"Yes", "No", NULL)

I am trying to transfer reference information from one custom object to another. The name of the field I am trying to transfer is "Able to Mention Customer's Name". The picklist values for this field are Yes, No, Pending. 

I would like the value of this field to be updated into the field "Contract Allows External Use?"

Below is my formula. Any advice with what I am doing wrong is greatly appreciated. 

CASE( Customer_Information__r.Able_to_Mention_Customer_Name__c ,"Yes", "No", NULL)