Hi @JMistretta,
Great question, thanks for asking the HubSpot Community!
I understand that you have already checked these but I’ll share the resources for reference here for all Community Members:
- Transactional Email API Guides
- Transactional emails API endpoints
I’d love to put you in touch with some of our Top Experts and Community Members: Hi @coldrickjack, @AndreMiranda, @DWesterholm, @bradmin, @sylvain_tirreau and @zach_threadint do you have suggestions to help @JMistretta, please?
Have a lovely day and thanks so much!
Best,
Bérangère