Mists of Pandaria Edit
Since the release of Mists of Pandaria, the Battleground and Raid channels appear to have been combined into one called "Instance". My macros which use SendChatMessage no longer work. I have tried changing "BATTLEGROUND" to "INSTANCE" but they still don't work. If anyone has further information regarding how this has changed, please post... my custom-made macros were quite useful. —The preceding unsigned comment was added by Aeristan (talk · contr).
I did INSTANCE_CHAT and it works in a battleground for my custom setup.