The "Send Email" option in Decile Hub may be greyed out if you've reached the daily limit of 500 emails, or if you've selected more than 50 prospects at a time. Try reducing the number of selected prospects or wait until the next day if you've reached the daily limit. If the issue persists, it may be a technical problem and you should contact Decile Hub support.
It was limit of 50. You need to have a message showing explaining reason or a tool tip or something. Otherwise looks like a weird bug - this doesn't work but everything else does, maybe email integration is broken or something...
I seem to have a hidden stage. As you can see below, Warm Outreach is in the list of stages I could move to but not in the list of stages in this pipeline. Something is wrong here.
