"Enter Parameter Value" when trying to open form

[oiliboi]

I am trying to open Contact List and Contact Details forms and it asks me to "Enter Parameter Value" with the name of a field that used to be in my database.
I do not understand what this is. If I click "Cancel" when I try to open Contact List, it brings me back to Design View. If I type something random it shows me Form View.

[JoeM]

What that means is that field which is no longer in your database is still somewhere in your Form, and you need to find it and delete it.
What is Record Source of your Form? If it is a Query, try opening the Query directly and see if you get the same prompt for parameter. If so, it is still in the query and needs to be deleted out of there.
Otherwise, look for it in places on your Form like sorting, grouping, and calculated fields.

[oiliboi]

What that means is that field which is no longer in your database is still somewhere in your Form, and you need to find it and delete it.
What is Record Source of your Form? If it is a Query, try opening the Query directly and see if you get the same prompt for parameter. If so, it is still in the query and needs to be deleted out of there.
Otherwise, look for it in places on your Form like sorting, grouping, and calculated fields.

Yes, it has a query:


Even if I remove the query from Row Source and make this field a text box, or delete the query, when I try to delete the Company field, it tells me "Deleting "Company" field requires Contact management database to delete one or more indexes". It seems it is still connected somehow. I think I might as well just keep the field and Unhide it if it's giving me so many issues!

[JoeM]

Even if I remove the query from Row Source and make this field a text box, or delete the query, when I try to delete the Company field, it tells me "Deleting "Company" field requires Contact management database to delete one or more indexes".

That appears to be an entirely different issue than the one you first asked about:

I am trying to open Contact List and Contact Details forms and it asks me to "Enter Parameter Value" with the name of a field that used to be in my database.