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Tencent Ads

Tencent Ads has self-serve advertiser signup and a public Marketing API. It also has documented web self-attribution and User Action API routes. Access is account, application, permission, and product dependent. Use ad-conversion-hub for the canonical event envelope, consent gate, identity rules, retry policy, and adapter contract. See Tencent's advertiser signup guide, Marketing API quick start, and web conversion API guide. Pair it with ad-experiments for one-audience tests, seed sizing, PII-export authorization, and payment-provider truth.

Account and access

Advertisers can start from Tencent Ads' 开户 → 我要开户 flow. The official guide says to provide company information, connect a QQ account, add the promotion URL, upload the business license, select the industry, and submit the account for review. It says Android app advertisers must first register the app on Tencent Open Platform. See the account guide and review process.

Marketing API access is a separate developer flow. Register as a developer, create an application, and request the required permission group. Tencent documents private applications for the developer's own advertising identity and third-party applications for managing multiple advertiser accounts. A private application cannot use OAuth to manage other accounts; third-party applications support OAuth and receive stricter review. See the developer quick start.

For third-party access, Tencent documents server-side OAuth 2.0. The advertiser authorizes the application, which receives an authorization code and exchanges it for an access token and refresh token. The token exchange endpoint is https://api.e.qq.com/oauth/token. The documented parameters are client_id, client_secret, grant_type, authorization_code or refresh_token, and redirect_uri for the authorization-code flow. See OAuth authorization.

Tencent's documented defaults are 24 hours for access_token and 30 days for refresh_token. The application settings can change the access-token lifetime, and refreshing the access token renews the refresh-token lifetime. See the application and token settings.

Use local secret names only as adapter conventions:

TENCENT_ADS_CLIENT_ID
TENCENT_ADS_CLIENT_SECRET
TENCENT_ADS_ACCESS_TOKEN
TENCENT_ADS_REFRESH_TOKEN
TENCENT_ADS_ACCOUNT_ID
TENCENT_ADS_USER_ACTION_SET_ID
TENCENT_ADS_CONVERSION_ID

These names are not Tencent field names. Never put client_secret, access tokens, or refresh tokens in browser code, logs, screenshots, or commits.

Client-side tag or app measurement

Do not add a guessed Tencent pixel, cookie, SDK initializer, or public tag ID. The fetched Tencent pages do not provide a current browser snippet in the material used here. The official landing-page integration guide instead tells site builders to register a developer application, obtain reporting permission, and upload landing-page user actions through Marketing API. See the landing-page integration requirements.

For app measurement, use the documented User Action API contract. If an app SDK is required, fetch Tencent's current SDK instructions before coding. The app guide defines device identifiers and app event types, but this skill does not invent a package name, initialization call, or app identifier. See the app conversion guide and User Action API reference.

Rule setup and event mapping

Create the web conversion rule in Tencent Ads' Toolbox → Conversion Tracking → Web conversion flow. The web guide says to use a callback route when click monitoring is configured, or a landing-page URL with click_id when it is not. The URL reported by the event must match the URL used by the conversion rule. See the web conversion guide.

Create a DMP user-action data source before sending Marketing API events. The source receives user_action_set_id; Tencent documents that field as the unique ID assigned when the user-action source is created. See the User Action API reference and app conversion guide.

Use only the documented Tencent action type that matches the business event:

The REGISTER, VIEW_CONTENT, INITIATE_CHECKOUT, PURCHASE, RESERVATION, and LEAVE_INFORMATION values come from Tencent's current User Action enum. Tencent's guide also lists PURCHASE for payment and REGISTER for registration. See the User Action API reference and web conversion guide.

Do not map every hub event automatically. Tencent's event enum is the platform contract. If no Tencent action type matches, record the first-party event in the hub and do not send a guessed action type.

Server-side conversions API

Tencent does not call this surface a Meta-style “Conversions API.” Its public server route is the Marketing API User Action API, user_actions/add. Tencent's reference documents V1.1, POST, the User Actions permission, and the production request form below. See the User Action API reference.

The global parameters are query parameters. access_token is the OAuth token; timestamp is UNIX seconds, with a maximum client clock error of 300 seconds; and nonce is a caller-generated string of no more than 32 characters. Tencent documents account_id, user_action_set_id, and actions as required. The actions array has a maximum of 50 items and 50 KB. See the request fields.

POST https://api.e.qq.com/v1.1/user_actions/add?access_token=<ACCESS_TOKEN>&timestamp=<UNIX_SECONDS>&nonce=<UNIQUE_NONCE>
Content-Type: application/json

{
  "account_id": "<ACCOUNT_ID>",
  "user_action_set_id": 1234567890,
  "actions": [
    {
      "external_action_id": "<CANONICAL_EVENT_ID>",
      "action_time": 1735689600,
      "action_type": "PURCHASE",
      "user_id": {
        "hash_phone": "<MD5_PHONE>"
      },
      "trace": {
        "click_id": "<CLICK_ID>",
        "url": "<H5_URL>"
      }
    }
  ]
}

For web actions, Tencent says trace.url must contain the H5 URL where the event occurred. trace.click_id is the click ID when available. For app actions, user_id is required; for web actions, Tencent says it may be omitted but recommends it for later optimization. See the User Action API reference.

For a web event value, Tencent's web guide documents action_param.value for PURCHASE and COMPLETE_ORDER, with the value expressed in cents. Use the current User Action schema for the exact serialization of action_param. See the web conversion guide.

Tencent documents a successful User Action API response as code: 0 with an empty message. Treat that as platform receipt only. Store the dispatch result and apply the hub retry and dead-letter policy. See the API response example and hub contract.

Web self-attribution route

Tencent also documents a separate web self-attribution route. Use it only when the web conversion rule and click-monitoring setup match the route:

POST http://tracking.e.qq.com/conv?cb=<URL_DECODED_CALLBACK>&conv_id=<CONVERSION_ID>
Content-Type: application/json

{
  "actions": [
    {
      "outer_action_id": "<PLATFORM_SAFE_EVENT_ID>",
      "action_time": 1735689600,
      "action_type": "PURCHASE",
      "action_param": { "value": 2500 }
    }
  ]
}

The captured __CALLBACK__ value arrives URL-encoded from the click redirect. Decode it once to get the raw cb content, then percent-encode that value again with a URL builder when placing it in the cb query parameter. Do not concatenate the decoded value into the query string as literal text: if it contains &, =, or #, an unencoded insert corrupts the query and breaks attribution.

Without a callback, Tencent documents this form:

POST http://tracking.e.qq.com/conv
Content-Type: application/json

{
  "actions": [
    {
      "outer_action_id": "<PLATFORM_SAFE_EVENT_ID>",
      "action_time": 1735689600,
      "action_type": "PURCHASE",
      "url": "<H5_URL>",
      "trace": { "click_id": "<CLICK_ID>" }
    }
  ]
}

The same guide documents a GET form at http://tracking.e.qq.com/conv/web?clickid=&action_time=&action_type=&link=. It documents code: 0 as successful receipt. The guide currently prints these conversion URLs with http. Confirm the current HTTPS contract with Tencent before sending production traffic. Do not silently replace the documented scheme or place secrets in the query string. See the web conversion API guide.

Identity and consent

Gate every Tencent dispatch with the hub's consent decision. The Tencent docs fetched here define these identity rules:

• hash_imei: lowercase the IMEI, then MD5 it.
• hash_idfa: uppercase the IDFA, then MD5 it.
• hash_phone: MD5 the phone number directly.
• oaid: preserve the OAID value without MD5 when using that documented field.
• hash_android_id: MD5 the Android ID.

See the app conversion identity rules and User Action field reference.

Tencent's User Action reference also lists SHA-256 device and phone fields. Do not substitute a SHA-256 field for an MD5 field. Do not add email hashing: the fetched Tencent conversion references do not establish an email field or an email normalization rule for this adapter. Keep raw identifiers out of logs and delete temporary normalized values after dispatch.

Click ID and first-party cookie

For Tencent web traffic, the official web guide says each click creates a click ID. It identifies qz_gdt as the non-WeChat landing-page URL parameter and gdt_vid as the WeChat landing-page URL parameter. Capture the value on the landing request, subject to consent, and store it with the canonical event. See the web conversion API guide.

For callback-based attribution, Tencent documents CALLBACK as a value that must be URL-decoded into cb. It documents clickid as the GET query parameter and trace.click_id as the JSON field. These names are route-specific. Do not rename them to click_id in the callback URL. See the web conversion API guide.

The fetched Tencent sources do not document a Tencent-owned browser cookie name or cookie lifetime. Do not invent one. Use first-party storage only for the consented campaign value and the hub's retention policy.

Deduplication

Deduplicate by the route-specific field, not by a guessed event_id field:

• Marketing API user_actions/add uses external_action_id. Tencent says its deduplication key combines user_action_set_id, external_action_id, and action_type.
• The web self-attribution guide uses outer_action_id. Tencent says its value may be up to 255 bytes and may contain only letters, digits, underscores, and hyphens. Its deduplication key combines the user-action source, outer_action_id, and action_type.

See the User Action API reference, app deduplication guidance, and web conversion API guide.

The fetched Tencent pages do not document browser/server cross-route deduplication. Do not send both routes for one event unless Tencent gives the campaign a written reconciliation rule.

Tencent Ads settings that override code

• The conversion rule and its landing-page URL are configured in the Tencent Ads console. The event URL must match the configured URL for web reporting.
• A callback route requires click monitoring in the web conversion setup. The no-callback route requires the landing-page URL and click ID.
• Tencent's third-party exposure and click monitoring requires separate allowlisting. Tencent says advertisers should request it by email and provide the advertiser account ID and monitoring type. See the monitoring allowlist guide.
• A developer application must have the required User Actions permission. Tencent says application permissions can differ by application and usage. See the User Action reference and developer quick start.

Never infer a campaign's enabled action types, attribution mode, monitoring allowlist, or data-source authorization from code alone. Read the console configuration and the account's approved permission set.

Verification

1. Request proof: record a redacted response. For the User Action API and web self-attribution route, code: 0 proves Tencent received the request; it does not prove ad attribution. See the User Action response and web response.
2. Data-source proof: Tencent says to inspect the DMP data-source access report. It identifies PV as the successful upload count and recommends checking ad-attribution conversion data in the delivery backend later. See the app conversion verification guidance.
3. Business proof: reconcile purchase with succeeded payment records. Reconcile refund in the payment system. Do not count API receipt as a purchase.

For web traffic, test both branches separately: callback plus cb, and landing-page URL plus trace.click_id. Do not test by copying the example callback URL. Tencent says the callback value comes from the click redirect. See the web conversion API guide.

Common pitfalls and security

• Do not use https://e.qq.com/ads/ as a token-validation endpoint. Tencent documents OAuth token exchange at https://api.e.qq.com/oauth/token and the User Action call at https://api.e.qq.com/v1.1/user_actions/add. See the OAuth guide and User Action reference.
• Do not put access_token or client_secret in browser bundles. The OAuth guide shows query parameters, so redact request URLs before logging them. See OAuth authorization.
• Do not use event_id, eventId, pixel_id, or TENCENT_ADS_PIXEL_ID as Tencent fields. Use only the route-specific fields documented above. See the User Action reference and web conversion guide.
• Do not confuse qz_gdt, gdt_vid, clickid, click_id, cb, and CALLBACK. They belong to different request locations. See the web conversion guide.
• Do not send raw IMEI, IDFA, phone, or OAID without the hub consent gate. Apply Tencent's documented normalization before hashing. See the identity rules.
• Do not call the old web route and User Action API for the same event unless the campaign has an explicit reconciliation plan.
• Do not treat code: 0 or a DMP PV count as proof of payment attribution. See the User Action response and DMP verification guidance.
• The web guide currently prints the conversion endpoint with http. Confirm the production transport with Tencent before launch.

Missing credentials must produce a logged adapter skipped result. A missing or revoked User Actions permission surfaces as a Tencent API error response on an otherwise-enabled application, so it must produce a logged failed result instead — not skipped — per the hub adapter contract, so a permission change on a live integration cannot silently drop conversions. Neither result may fail checkout. Keep retry state and consent metadata in the hub. See ad-conversion-hub.

Official sources checked (2026-08-30)

• Tencent Ads account setup · account review
• Marketing API quick start · OAuth authorization
• User Action API · app conversion guide
• Web conversion API
• Landing-page integration requirements · click and impression monitoring