After adding the bot, you'll see a message similar to this. Click "Authorize" and follow through the auth process. It should be done by someone who will always be present in the space: this person will serve as the bot's eyes.
Send any direct message to Wxgram.
On the presented screen, click "New connection" and finalize subscription.
After subscribing, click "Refresh" and copy the presented product key to the clipboard.
If you are on a mobile device, tap "Send key as message" to make copying easier.
Paste the product key in the Webex space.
Paste the product key there too.