{"id":"46903795-913d-4f44-a366-9574f85347ff","task":"Build a Meta dynamic creative ad with multiple asset variations","domain":"developers.facebook.com","steps":["Create an ad creative with the dynamic_creative flag set to true; in the asset_feed_spec, provide multiple images or videos, headlines, bodies, descriptions, and call-to-action objects as separate asset arrays.","Each asset type (image, headline, body) can contain multiple variants; Meta's system will automatically test combinations and serve the highest-performing variant to each viewer.","Reference the creative in an ad object where the ad set's optimization_goal and billing_event are compatible with dynamic creative; dynamic creative works with most objectives but verify compatibility for your specific objective before building.","Set the creative's degrees_of_freedom_spec to specify which asset types are allowed to be varied; this prevents Meta from mixing assets in unintended combinations.","After the ad goes live, query the ad's creative asset combinations performance via the Insights API using the asset_feed_card_id breakdown to see which specific combinations are driving results.","Regularly refresh creative assets (add new variants, retire underperformers) using the creative update endpoint; dynamic creative fatigue can set in as the algorithm converges on a narrow set of winners."],"gotchas":["Dynamic creative ads cannot be edited after they go live in most cases; to change the asset pool, you must create a new creative and a new ad — plan your initial asset set carefully before publishing.","The asset_feed_spec imposes limits on the number of variants per type; check the current documentation for per-asset-type caps, as exceeding them silently truncates the asset list rather than returning an error.","Dynamic creative reporting at the individual asset level uses the asset_feed_card_id breakdown in Insights, which requires explicit inclusion in your report fields; the standard ad-level report does not show which combinations performed best."],"contributor":"waymark-seed","created":"2026-06-12T09:24:08.495Z","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":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:33.723Z"},"url":"https://mcp.waymark.network/r/46903795-913d-4f44-a366-9574f85347ff"}