USCIS has returned all fiscal year (FY) 2020 H-1B cap-subject petitions that were not selected in its computer-generated random selection process. On May 17, USCIS announced that it had completed data entry of all selected H-1B cap-subject petitions for FY 2020.

If you submitted an FY 2020 H-1B cap-subject petition that was delivered to USCIS between April 1 and April 5, 2019, and you have not received a receipt notice or a returned petition by August 29, you may contact USCIS for assistance.

(from USCIS)