--- a/multimerge.py	Tue Jul 05 10:34:58 2016 +0300
+++ b/multimerge.py	Tue Jul 05 10:35:42 2016 +0300
@@ -411,16 +411,24 @@
 
 ## Start merging events ..
 gcm_debug("Re-merging events to target calendar ..")
-dst_gcm_ids = map(lambda x: x["gcm_id"], dst_events)
-src_ids = map(lambda x: x["id"], src_events)
-dst_ids = map(lambda x: x["id"], dst_events)
-rm_ids = [x for x in dst_ids if x not in src_ids]
+dst_gcm_ids = frozenset(map(lambda x: x["gcm_id"], dst_events))
+src_ids = frozenset(map(lambda x: x["id"], src_events))
+dst_ids = frozenset(map(lambda x: x["id"], dst_events))
 
 for event in src_events:
     # Does the event exist already in the target?
     if event["gcm_id"] in dst_gcm_ids:
-        # Yes. Thus, we just update the event
+        ## Yes. Thus, we just update the event.
+        event["status"] = "confirmed"
     else:
-        ## Insert new event
+        ## Event does not seem to exist. Insert new event.
+        event.pop("iCalUID", None)        # Remove the iCalUID, having it conflicts with event ID
+        event["id"] = event["gcm_id"]     # Replace Google generated ID with our own
+        try:
+            new_event = service.events().insert(calendarId=cfg.dest_id, body=event).execute()
+        except Exception as e:
+            gcm_fatal("Failed to insert new event:\n{0}\n\nERROR: {1}\n".format(event, str(e)))
+
+## Remove "stale" events
 
 gcm_debug("Finished.")