Linden Lab Official:Can I delete a group notice after I've posted it
Revision as of 11:44, 26 October 2010 by Jeremy Linden (talk | contribs) (Text replace - '{{KBmaster}}' to '<noinclude>{{KBmaster}}</noinclude>')
There is no way to delete a group notice after you have posted it.
However, group notices are only kept for 14 days, and (if you have a particularly busy group) only the last 200 are stored, so you can wait two weeks and your group notice will disappear naturally.