You can add participants to a Zoho Cliq channel in three different ways, and there's also a scripted route for adding a large number of people at once.

The Three Manual Methods

• Participants count icon. Click the participant count shown in the channel header to open the participant list and add people from there.
• Actions menu. Use the channel's Actions menu to find the option to add participants.
• Textbox command. Click the Add Participant icon in the top-right corner of the chat header, or type + directly in the text box, to add someone inline without leaving the conversation.

A Known Issue Worth Checking

Some users have reported that colleagues with active Zoho Mail logins don't appear in the Add Participants search results. If someone you expect to see isn't showing up, this is worth raising with Zoho support directly, since it's been reported as a genuine, reproducible issue rather than user error.

Adding Many Participants at Once

Adding participants one by one is tedious for larger onboarding batches. A documented approach uses Cliq's platform components (a custom slash command, a Zoho Oauth connection, and a Deluge script) to bulk-add users to a channel directly from a Zoho Sheet or CSV file, rather than adding each person manually. This requires the ZohoCliq.Channels.ALL and ZohoSheet.dataApi.ALL scopes and some custom scripting, so it's best suited to teams comfortable building a lightweight internal tool, or with developer support available.