The Right Way To Make A Query By Form

Hello,

I have a query by form named QBF_Form, I use it to help users query a form without having to open the query directly. A query, Cert, is based on this form using expressions like:
Like Forms!QBF_Form!Sales & "*" Or Forms!QBF_Form!Sales Is Null

This Cert query is a source for a form called Manage. I have a macro to open the "Manage" form, run the Cert query, and close the query . Everything works fine when I do this.

But when I click on the Manage form directly, I get this: Enter Parameter Value:
Forms!QBF_Form!Sales

How can I prevent this from happening? How can I change the logic?

Thanks for your help again!