Hi {{first_name}},
Thanks for the call today. As promised, here's [[the resource you committed to send: pricing breakdown, comparison doc, case study, setup guide, security documentation]]: [[link or attachment]].
The next step we discussed was [[specific next step: e.g., "a follow-up with your CTO" or "a trial setup" or "a proposal by end of week"]]. I'll have that ready by [[date]].
Let me know if anything else comes up in the meantime.
[[Your name]], [[your company]]