Nintex with Slack is fast
Nintex workflow cloud (NWC in short) can connect with Slack with a very high speed. I create a simple workflow in NWC to post a simple message in a Slack group. I start the workflow externally by Mac’s curl command, i can see the message appear in Slack client in less than 1 second, which is a very instant response and very high speed. You can use Nintex as the middle layer between all your systems, and deliver messages to Slack.