Fix our Meta Conversions API — get purchase events showing up with proper values

We run a subscription app (Firebase backend, Razorpay billing). When someone's ₹299 subscription charges, we send that purchase to Meta through the Conversions API — but it isn't showing up correctly in Meta, so we can't optimize our ads for it. We need someone who knows Meta CAPI to fix this so the ₹299 purchase (with its value) shows up correctly in Events Manager and can be used as a conversion event for our ads. What we think is wrong: The event is tagged action_source: "app" and has no real user identifier (no email/phone), so Meta can't match it to a person. It needs the correct action_source, hashed user data, and value + currency (INR). The fix lives in our Firebase Cloud Function that receives the Razorpay webhook. This is a small, focused job — likely 2–3 hours for someone who's done this before. Fixed price: $50.