I hadn't heard the concept of "suggested CCing to the internal team" before. How do you phrase this? Are you asking them to forward your email on, or to CC others on their reply to you?
"Please feel free to CC your technical team so we can make sure we're all on the same page regarding [technical requirements X, Y, and Z]."
Or something to that effect.
If the purchasing agent is feeling over-their-head technically, they might jump at the chance to involve someone who actually understands the requirements.
Disclaimer: I don't do SaaS, but I've been involved in a few enterprise sales in the capacity of "sales engineer".
