THis was discussed at length here back in 2004 and I copied some of the posts but I haven't been able to find them via search so that I could link to them.
Here's one which may help:
Re: Ju 88 Units over Yugoslavia
Tue Jul 20, 2004 19:24
152.163.253.34
Very briefly,
Formed April-May 1943 in Germany (where is unknown, but possibly in the Cottbus area) as a provisional unit (“an der Kommandoweg aufgestellt”) with Gruppenstab and 1. – 3.Staffel using assets taken from the bomber training schools and initially named Einsatz-Kampfgruppe Ju 88/General d. Fliegerausbildungs. Operated over Yugoslavia from c. 18 May to 11 Jul 43, mainly from Belgrade-Zemun, Sarajevo-Butmir and Mostar-South. It provided bomber support for Unternehmen "Schwarz". Went to Greece after that. All Ju 88A-4 losses over Yugoslavia were to crashes and accidents. None to hostile fire.
Kommandeur:
Hptm. Karl-August von der Fecht (DKG, RK) (May 43? - Nov 43)
Two of the Staffelkapitäne were:
3 Jul 43: 2 Ju 88A-4s collided while taking off from Sarajevo-Butmir, 100% and 80%, Staffelkapitän Maj. Helmut Wendel + 1 KIA and 2 WIA.
9 Oct 43: Ju 88A-4 (K5+JL) FTR from a flight over the Adriatic, Staffelkapitän Hptm. Helmut Schüler + 3 MIA; another Ju 88A-4 crashed into the sea south of Kos in the Dodecanese Islands/Aegean – engine failure.
There was also the following officer, but I doubt that he was a Staffelkapitan:
10 Oct 43: Ju 88A-4 crashed and burned at Athens-Tatoi, 100%, Oblt. Georg Denkmann + 2 KIA and 1 WIA.
HTH,
Steve W.