Turbotax telling me I need to enter something for "Box d" but my W2 doesn't have a box d.

Thanks for using TurboTax

A Control Number (Box D) is used by many payroll departments to uniquely identify a W-2 in their system.

• If your W-2 doesn't have one, it's no big deal – you can simply leave it blank.

• If you get errors when attempting to e-file with an empty Box D, just enter any number in this format:
  
• 5 digits, space, 5 digits (for example, 12345 67890).
  

• If you're trying to import your W-2 and you're persistently being asked to enter something in Box D, click skip import to get past this screen and manually enter your W-2 (which should only take a few minutes anyway).

Related Thread: https://ttlc.intuit.com/questions/2655867-box-d-matches-what-s-the-problem?jump_to=answer_4421994
FAQ: https://ttlc.intuit.com/questions/2669624-i-have-no-box-d-or-control-number-on-my-w-2

Hope this helps