If Box 4 isn't included in my 1099-NEC form, what should I do? Should I contact my employer for this information?

My 1099-NEC form includes only Box 1, but TurboTax wants me to fill out Box 4 as well. I don't have this information and TurboTax will not let me continue until I fill out Box 4.  What do you suggest I do?Thanks for your help!