TITLE: GCN CIRCULAR NUMBER: 33857 SUBJECT: Fermi Gamma-ray Burst Monitor trigger 706536788/230523509 is not a GRB DATE: 23/05/23 12:47:13 GMT FROM: Andreas von Kienlin at MPE A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team: "The Fermi Gamma-ray Burst Monitor (GBM) trigger 706536788/230523509 at 12:13:03 UT on 23 May 2023, tentatively classified as GRB, is in fact not due to a GRB. This trigger is due to a Solar Flare."