Navigating AML Red Flags in Emerging Market Payments

For those operating PSPs or exchanges in emerging markets, what are the most challenging AML red flags you encounter consistently, particularly around source of funds verification for smaller, frequent transactions? We've found that traditional KYC often hits a wall here, and the data available for transaction monitoring isn't always as robust as it is in developed economies. Interested to hear practical strategies being deployed to mitigate risk without completely stifling growth in these crucial, yet often less regulated, corridors.