USCIS sent you a request for additional evidence for your case.
What it means
USCIS reviewed your case and needs more documentation before it can decide. The notice states what is missing and by when it must arrive.
What happens next
Respond in full before the deadline on the notice. Not responding is treated as abandoning the request.
Official USCIS wording
On September 5, 2024, we sent a request for additional evidence for your Form I-485, Application to Register Permanent Residence or Adjust Status, Receipt Number XXXXXXXXXXXXX. The request for evidence explains what we need from you. We will not take action on your case until we receive the evidence or the deadline to submit it expires. Please follow the instructions in the request for evidence. If you do not receive your request for additional evidence by September 20, 2024, please go to www.uscis.gov/e-request to request a copy. If you move, go to www.uscis.gov/addresschange to give us your new mailing address.