50435: Group MMS activation failed.
PROGRAMMABLE CHAT
ERROR
The conversation's Group MMS could not be activated.
- The conversation does not have at least three participants with messaging binding.
- The conversation has got a participant with identity but without projected address.
- The conversation's participants do not make a valid address list for group messaging.
- Check that all the participants have messaging bindings.
- Check that there is at least one participant with user address only.
- Check that there is at least one participant with a proxy address or a projected address.