USCIS case Status - Notice informing you of the action
"On October 12, 2018, we began reviewing your Form I-140, Immigrant Petition for Alien Worker, Receipt Number SRC1690101***. We mailed you a notice informing you of the action we intend to take on your case.
Please follow the instructions in the notice and submit any requested materials. If you do not receive your notice by October 26, 2018, please call the USCIS Contact Center at 1-800-375-5283. If you move, go to www.uscis.gov/addresschange to give us your new mailing address."
Could you please suggest is it a denial or approval or another RFE?