Problem with BG Macro

Guides UI and Macro
1

This macro

/script SendChatMessage(("INC @ "…GetSubZoneText()), “RAID”);

works fine if I’m in a raid, but fails if I’m in a random battleground. What do I need to replace RAID with to announce to the channel for a bg?

2

According to Wowpedia “INSTANCE_CHAT” is used for battlegrounds.

/script SendChatMessage(('INC @ '…GetSubZoneText()), 'INSTANCE_CHAT');

3

https://www.curseforge.com/wow/addons/macro-talk variant.

/gr INC @ %sz