Subject: “ToDo->Participants->Categories” are not sent!
Lotus Notes KB states that this has happened all the way back to R3.x (maybe before)
WHat happens is the field Categories gets renamed to FormCategories and Categories has the entry(s) removed.
My speculation is that a persons profile contains “standard” categories and “custom” categories and as an external source cannot see these Lotus has just shifted the value out of the way.
Quoting Lotus “there are no plans to fix this” that was back in R5
but hey, I would also like to know a work around for this.