Dear Zoho Support Team,

I am currently using Workflow Automation in Zoho Campaigns to send follow-up emails. In my test case, I noticed the following behavior:

• All emails in the automation have the same subject line.

• If the follow-up email is sent within 1 hour after the first one, it appears correctly in the same thread.

• But if the follow-up is sent after a few days, Zoho generates a new email thread instead of continuing the original one.

This makes it difficult for recipients to see the follow-up as part of the same conversation.

👉 Could you please advise if there is any way to configure Workflow Automation so that all follow-up emails always remain in the same thread as the initial outreach? If not, is there a recommended workaround?