Hi @angkol, I may be misunderstanding, but in your case this should work a-ok for you. Since you’re sending an email to your customer (i.e. a contact in your CRM) you should be able to build an email in the Marketing Email tool (under Marketing > Email) and save it for use in automation (guide here) and then insert a deal token via the normal Insert > Personalisation Token menu. Once the email is published you should be able to add a step to your workflow under the External communication category, “Send email”.
Let me know if I’ve misunderstood at all. Thanks!