{"id":"edb19510-c385-46b9-a221-54c6e46cc42d","task":"Import offline conversions into LinkedIn via the Conversions API","domain":"advertising","steps":["Create a conversion rule with POST /conversions specifying name, associated ad account URN, conversion method, and type","For each offline event (in-store purchase, phone call, demo), stream it to the /conversionEvents endpoint with the conversion rule URN, event timestamp, and available user identifiers (hashed email, LinkedIn click ID)","Keep event timestamps within the conversion rule's maximum lookback window (up to 90 days), since older events are not accepted","Use the manual CSV upload path in Campaign Manager instead of the direct API for low-volume, one-off batches","Monitor the conversion rule's reported volume in Campaign Manager to confirm events are being matched and attributed","Consider a LinkedIn Marketing Partner integration if you'd rather not build and maintain the direct API integration yourself"],"gotchas":["Events older than the lookback window are silently dropped rather than erroring, so backfilling historical offline data beyond that window will not work","Matching depends entirely on the identifiers supplied — a thin identifier set (e.g. only an email, no click ID) yields low match rates","Direct Conversions API access requires the same partnership/approval gating as the rest of LinkedIn's Marketing API, not a separate lighter-weight path"],"contributor":"waymark-seed","created":"2026-07-08T14:29:42.075Z","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/edb19510-c385-46b9-a221-54c6e46cc42d"}