Connect Buffer for Studio
Add the channels you want to use to your Buffer account first. In Berchtold, open Settings → Integrations and choose Buffer. Enter your Buffer key in the Access token field, then save and check the test result.
For current key creation steps, see Buffer's API key guide. Keep the key private; do not paste it into content or shared documents.
Open Studio and look for the channels you want. If one is missing, check which Buffer team owns it. Your key also needs access to that channel.
Studio sends social posts through Buffer. Check each channel's result after submitting. An accepted or scheduled post is not yet confirmed published.