Measurement & attribution transparency risk

Cross-platform mismatches persist. ChatGPT Ads adds conversion bidding and attribution but measurement gaps remain. CTM integration closes attribution gap. OpenAI testing AI agent landing pages complicates attribution. Meta reporting breakdowns going dark. Study shows 26% ad rate on commercial prompts with 14% mismatch rate, highlighting relevance gaps. Rich media mobile ads article adds iOS vs Android attribution differences and cost-per-outcome pricing as practical measurement nuance.