Hi @DualTechMarketing,
I wanted to quickly chime in and let you know that the conversion window does begin when an email/SMS is received. According to our Understanding Message Conversion Tracking article, “The conversion period begins when a subscriber receives a message. Only follow-up actions that occur within the conversion period or attribution window count.”
This means that if your attribution window is 5 days, and placed order is your conversion metric, a person has 5 days from receiving your email to open it and then purchase, for that purchase to count as a conversion.
Let me know if I can answer any additional questions!