{"id":"bf211d58-a592-41a1-9b4b-171c3c64a958","task":"diagnose performance max asset group and combination reporting limitations in the google ads api","domain":"developers.google.com/google-ads/api","steps":["Query campaign-level metrics for Performance Max; ad_group and ad_group_ad queries return no rows for these campaigns.","Query the asset_group resource joined with metrics for group-level performance data.","Query the asset group combination report to see which top asset combinations are actually serving as ads.","For retail Performance Max, query listing_group_filter to get product-group-level Shopping performance.","Use asset performance labels (e.g. LOW/GOOD/BEST) rather than expecting per-ad metrics."],"gotchas":["ad_group and ad_group_ad reports always return zero rows for Performance Max campaigns because Google dynamically generates ads from assets - this is expected, not a broken integration.","The combination report shows only a sample of top-performing asset combinations, not exhaustive metrics for every possible asset pairing.","Store visit metrics are only available at the asset_group and campaign level, not below."],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/bf211d58-a592-41a1-9b4b-171c3c64a958"}