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    CONNECTIONS / AWS S3 / AWS S3 to TikTok Custom Audience

    S3 exports into TikTok, built for TikTok audience targeting.

    Signals reads your S3 exports through a read-only IAM key scoped to the one S3 bucket you name, then delivers first-party segments to TikTok as match-ready custom audiences so TikTok sees match-ready audiences without an export.

    Talk to our team Explore the setup

    aws-s3 -> tiktok-custom-audience :: live

    1. ● aws s3 → tiktok.audience :: live
    2. > read segments rows=72,450
    3. hash sha256(email,phone) consent=filtered
    4. route tiktok deliver
    5. ✓ delivered · 63,756 matched

    WHAT THIS ENABLES

    AWS S3 to TikTok Custom Audience

    TikTok Custom Audience for AWS S3: Signals delivers first-party segments to TikTok as match-ready custom audiences straight from your S3 exports, hashed and consent-screened each time a new file lands.

    • Signals delivers first-party segments to TikTok as match-ready custom audiences, reading your S3 exports each time a new file lands.
    • Targeting that mirrors your live segment, with no export step out of your S3 exports.

    WHAT FLOWS WHERE

    AWS S3 to Custom Audience, mapped.

    Signals picks up the customer segments from your S3 exports; Signals hashes and consent-screens each record before TikTok's Custom Audience API accepts the match-ready audiences for match quality on TikTok.

    Signals picks up the customer segments from your S3 exports; Signals hashes and consent-screens each record before TikTok's Custom Audience API accepts the match-ready audiences for match quality on TikTok.

    WHO THIS IS FOR

    Built for the teams that own the number.

    TikTok advertisers seeding lookalikes and suppressing existing customers, working out of S3 objects, prefixes, and export drops.

    Data teams landing exports in S3 who need TikTok custom audiences mirroring the segment your data team publishes out of S3 exports.

    HOW DATAHASH SETS IT UP

    From kickoff to verified events.

    1. Connect

      A read-only IAM key scoped to the one S3 bucket you name, mapped to TikTok's Custom Audience API and tuned for match quality on TikTok.

    2. Map

      Columns from your S3 exports align to TikTok's Custom Audience API in the visual mapper, hashed as the file lands and checked for match quality on TikTok.

    3. Deliver

      Each time a new file lands, Signals reads your S3 exports and delivers first-party segments to TikTok as match-ready custom audiences, processes only the newly dropped file, with match quality on TikTok watched in the debugger.

    WHAT YOU GET

    What ships with this use case.

    TikTok custom audiences mirroring the segment your data team publishes from your S3 exports, delivered each time a new file lands.

    Targeting that mirrors your live segment out of your S3 exports, delivered each time a new file lands without transfer overhead climbing.

    Match feedback on match quality on TikTok from TikTok's Custom Audience API each run, tied back to your S3 exports.

    ON THE WIRE

    What Custom Audience actually receives.

    signals :: aws-s3.tiktok-custom-audience :: wire

    1. ● signals :: audience upload
    2. > POST /dmp/custom_audience source=aws-s3.segments
    3. id_schema ["EMAIL_SHA256","PHONE_SHA256"]
    4. action "add" · audience_id "aud_82087"
    5. id_list_size 72,450 · matched 63,756
    6. ✓ accepted match=88%
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    FAQ

    Asked on almost every call.

    How often does the AWS S3 TikTok Custom Audience sync run?

    You set the cadence, from near-real-time to a nightly AWS S3 sync of your S3 exports into TikTok. Since Signals processes only the newly dropped file, TikTok custom audiences mirroring the segment your data team publishes keeps pace and data teams landing exports in S3 watch match quality on TikTok. One scoped connection sets it up, cadence adjustable later.

    What match rate should a AWS S3-sourced TikTok Custom Audience batch expect?

    Match rate follows identifier coverage in your S3 exports, which data teams landing exports in S3 control, not AWS S3 itself. A record with a current hashed email or phone matches for TikTok; one missing both cannot. First-run feedback from Custom Audience API pinpoints match quality on TikTok, the number data teams landing exports in S3 tune against.

    NEXT STEP

    AWS S3 to TikTok Custom Audience, in production this week.

    Talk to our team All AWS S3 use cases