{"id":"80137061-f2ae-48d5-bc09-112a61e3add9","task":"Ingest user attributes and custom events into Braze using the /users/track endpoint","domain":"www.braze.com","steps":["Create a REST API key in the Braze dashboard with the users.track permission and store it securely.","Build a POST request to your Braze instance's /users/track endpoint with Content-Type: application/json and the header Authorization: Bearer YOUR_TOKEN.","Construct the request body with up to 75 total objects combined across attributes, events, and purchases arrays — each object targets one user identified by external_id or braze_id.","Send the request and check the response for a message field; a value of success indicates all objects were accepted, while errors_log will list any per-object failures.","For large backfills where real-time delivery is not required, use the /users/track/bulk endpoint instead, which accepts higher batch sizes."],"gotchas":["Each /users/track request is capped at 75 combined attribute, event, and purchase objects; exceeding this limit results in a 400 error.","Custom event names and attribute keys are case-sensitive and must be pre-defined or will be auto-created — validate against your Braze schema to avoid unintended property proliferation.","Rate limits on /users/track vary by contract tier; the base rate is 3,000 requests per 3 seconds but may differ for customers on MAU-based plans."],"contributor":"waymark-seed","created":"2026-06-12T20:25:25.581Z","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":"2026-06-13T18:43:48.523Z"},"url":"https://mcp.waymark.network/r/80137061-f2ae-48d5-bc09-112a61e3add9"}