Thank you for the help.
I tried the code that you provided and received runtime error 3075:
syntax error (missing operator) in query expression '[TAD] = jackson'
[Main].[TAD] is a combobox stored as text, key field hiding.
[TADSlctRtrn] is a unbound combobox stored as text, key field hiding...
What I am trying to accomplish is update multiple records in a table that meets criteria that is stored in a combobox. The field that I am trying to update set to Null (also a combobox stored as text, key field hiding).
I have been able to get the where statement working with a checkbox...