Situation: While integrating an external payment API for an upcoming enterprise launch, we discovered an undocumented rate limit on their sandbox endpoint that capped throughput at one-fifth of our required transaction volume.
Task: I had to immediately notify commercial stakeholders, reset delivery expectations, and drive an engineering solution without causing panic among our sales partners.
Action: As soon as the technical limitation was verified, I scheduled a briefing with our commercial lead. I presented a concise three-part briefing: the exact technical constraint discovered, the impact on our original launch date (a ten-day delay if unmitigated), and two concrete solutions with trade-offs. Option A was negotiating an enterprise rate-limit tier with the vendor; Option B was implementing a client-side batching and queueing architecture on our end. We pursued both in parallel: while our business team engaged the vendor, my team built request batching.
Result: The vendor lifted the cap within five days, and our batching layer ensured we operated at 50% below their ceiling anyway. We launched only three days past the original target, and stakeholders commended the transparency and dual-path mitigation.