Check if 7 fields have been filled

You can try something like:

#{
    These sets of variables are used to test if fields are emtpy
    then creates an array of the fieldname(s) that are empty.
}#;
let x1 := if Name = null then "Name" end;
let x2 := if SKU = null then "SKU" end;
let x3 := if Text = null then "Text" end;
let x4 := if Date = null then "Date" end;
let x5 := if Number = null then "Number" end;
let trackingarray := [x1, x2, x3, x4, x5];
#{
    The IF statement checks the count of the trackingarray and
    if it is not equal to 0 then it, first, loops through the trackingarray
    to creates a string of text of the field names.

    Then it replaces the "," in the string with paragraph marks which is just
    literally just that empty space you see.

    Then it opens a dialog box informing the user of the empty fields.
}#;
if count(trackingarray) > 0 then
    let getfieldnames := for loop1 in trackingarray do
            loop1
        end;
    let showNames := replace(text(getfieldnames), ",", "
");
    dialog("Empty Fields", "Please enter in data in the following fields:
" + showNames, ["OK"])
else
    #{here is where you put in your code to create the new record}#;
    dialog("Completion", "New Record Created", ["OK"])
end

I hope this helps. Of course you need to change the field names to match yours and the dialog text to something that you want.

Here is what it looks like:

Oops forgot: just extend the variables at top to include the remaining fields and extended the trackingarray to include the new variables.