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Wingsrul91Wingsrul91 

Copy a picklist selection to a read-only field in another object

I have created a custom object that is related to the "Cases" object named "case comparison"
 
when you select new case comparison, i set up a formula that pulls the case number.
 
I would like to do the same for a picklist on the case page.  I am receving an error when trying to apply the formula that asks me to use the ISPICKVAL function.  I do not want to specify a specific value, I want it to be a wildcard that automatically makes the new field the same as the picklist value that the user selected. 
 
The picklist i want copied over is the "Type" field on the case page.  This type field should be the same value on the case comparison field.
 
Thank you for any help you can provide.
Gemini@WorkGemini@Work
Use the CASE expression.  I just answered a similar question over here -- that may get you thinking in the right direction.