Unable to mass update a picklist field

Unable to mass update a picklist field

Hello,

I have the records within our Accounts module divided between two account types: Parent Accounts & Member Accounts.  

I am attempting to mass update accounts from one picklist value to the other (within other specific criteria in our custom fields) and it is not showing up as an option.  Again, I am only looking to mass update a single picklist field across a few hundred accounts, and it's not showing on the list of available selections for a mass update.

What am I doing wrong?

    Nederlandse Hulpbronnen