--- title: Integrate USP Using API slug: integrate-usp-using-api icon: 🧱 docTags: createdAt: 2025-08-03T12:28:23.444Z --- :::hint{type="info"} **Who is this for:** Developers who want complete control over the User Selected Perks experience and prefer to build a fully custom UI using the API. **Outcome:** Implement USP via the MomentPerks API by managing offer retrieval, session IDs, user selections, and tracking without relying on the SDK. ::: # Overview If you want full control over how offers are displayed, selected, and submitted within your app or website, you can build a fully custom integration using the USP APIs. This approach lets you design your own user interface while using our backend for session management, offer selection, and tracking. ## Prerequisites - You have an active MomentPerks integration using the API. *** # Integration Steps ## Step 1: Retrieve Offers Using the MomentPerks API User Selected Perks (USP) is built on top of the MomentPerks API. To enable USP, your integration must call the API to retrieve eligible offers for a given user. Each request to the MomentPerks API must include a `pub_user_id`in the request body: - A unique, **non-PII** identifier representing the end user. - Used to associate offer sessions and selections with a specific user. - Must remain **consistent across user sessions and devices**. - Can be the same value as adpx\_fp, if available. You can generate the `pub_user_id`using any method that ensures uniqueness (e.g., a UUID stored in localStorage or server-side user ID). **Example API Response** A successful response will return a `session_id `in the body: - The `session_id`is a unique identifier for the user's active offer session. - It must be stored and reused for any subsequent offer selection, unselection, or session state operations. - It is tied directly to the `pub_user_id`you provided. ```javascript { "data": { "session_id": "abc123456789", // other parameters... } } ``` ## Step 2: : Build Your UI With the offer data returned from the MomentPerks API, you can build a fully customized User Selected Perks (USP) interface tailored to your brand and user experience. The UI should allow users to: - View available offers including titles, descriptions, images, and reward values - Select or deselect individual offers - Bulk-select or unselect all offers at once for convenience This interface acts as the primary point of interaction for users to curate their perks before checkout or a major app flow. ::::hint{type="info"} To help users understand the value of selecting offers, we recommend adding a short introduction above the offer unit. For example: :::BlockQuote 💡 *Choose the perks you’re interested in before completing your purchase. You’ll earn rewards by engaging with these personalized offers.* ::: :::: ![](https://api.archbee.com/api/optimize/ELjiwjWcrv0a1IejQFFAF/bURU0udmmpNhwZQMorn-4_image.png) ## Step 3: Handle User Interactions Once the offer selection UI is in place, you need to track and communicate user interactions, such as selecting or unselecting offers, by calling the appropriate MomentPerks endpoints. All USP API endpoints use the following base URL: ```javascript https://api.momentscience.com ``` ### Select Offer API Use this endpoint when a user selects an individual offer to indicate interest. This must be called for each individual offer selection as part of the User Selected Perks (USP) flow. - **HTTP Method**: POST - **URL: **[https://api.momentscience.com/sdk/v4/usp/\{\{session\_id}}/\{\{campaign\_id}}/select.json](https://api.momentscience.com/sdk/v4/usp/\{\{session_id}}/\{\{campaign_id}}/select.json) :::CodeblockTabs Select Offer API ```javascript POST https://api.momentscience.com/sdk/v4/usp/{{session_id}}/{{campaign_id}}/select.json ``` ::: **Replace:** - `{{session_id}}` with the session ID returned by the MomentPerks API - `{{campaign_id}}` with the ID of the selected offer's campaign **Headers:** | **Header** | **Value** | **Required** | | --------------- | -------------------- | ------------ | | `Authorization` | Bearer `{{API_KEY}}` | Yes | | `Content-Type` | application/json | Yes | **Request Body** | **Field** | **Type** | **Required** | **Description** | | ------------- | -------- | ------------ | -------------------------------------------------------------------------------- | | `pub_user_id` | String | Yes | Unique, non-PII identifier for the end user. Must be consistent across sessions. | **Example cURL Request** :::CodeblockTabs Example cURL Request ```javascript curl -X POST \ "https://api.adspostx.com/sdk/v4/usp/{{session_id}}/{{campaign_id}}/select.json" \ -H "Content-Type: application/json" \ -H "Authorization: Bearer {{API_KEY}}" \ -d '{ "pub_user_id": "your_pub_user_id" }' ``` Success Response ```json { "status": "success", "data": { "session_id": "abc123456789", "campaign_id": 849 } } ``` ::: **Response Fields** | **Field** | **Type** | **Description** | | ------------- | -------- | ---------------------------------------------- | | `session_id` | String | The current session ID tied to the user | | `campaign_id` | Number | The campaign ID of the offer that was selected | *** ### Unselect Offer API Use this endpoint when a user unselects a previously selected offer. This must be called for each individual offer unselection as part of the User Selected Perks (USP) flow. **Endpoint ** - **HTTP Method**: POST - **URL:** [https://api.momentscience.com/sdk/v4/usp/\{\{session\_id}}/\{\{campaign\_id}}/unselect.json](https://api.momentscience.com/sdk/v4/usp/\{\{session_id}}/\{\{campaign_id}}/unselect.json) ```javascript POST https://api.momentscience.com/sdk/v4/usp/{{session_id}}/{{campaign_id}}/unselect.json ``` **Replace:** - `{{session_id}}` with the session ID returned by the MomentPerks API - `{{campaign_id}}` with the ID of the offer's campaign that the user is unselecting **Headers** | **Header** | **Value** | **Required** | | ------------- | --------------------- | ------------ | | Authorization | Bearer \{\{API\_KEY}} | Yes | | Content-Type | application/json | Yes | **Request Body** | **Field** | **Type** | **Required** | **Description** | | ------------- | -------- | ------------ | -------------------------------------------------------------------------------- | | `pub_user_id` | String | Yes | Unique, non-PII identifier for the end user. Must be consistent across sessions. | :::CodeblockTabs Example cURL Request ```javascript curl -X POST \ "https://api.adspostx.com/sdk/v4/usp/{{session_id}}/{{campaign_id}}/unselect.json" \ -H "Content-Type: application/json" \ -H "Authorization: Bearer {{API_KEY}}" \ -d '{ "pub_user_id": "your_pub_user_id" }' ``` Success Response ```json { "status": "success", "data": { "session_id": "abc123456789", "campaign_id": 849 } } ``` ::: **Response Fields** | **Field** | **Type** | **Description** | | ------------- | -------- | ------------------------------------------------ | | `session_id` | String | The current session ID tied to the user | | `campaign_id` | Number | The campaign ID of the offer that was unselected | *** ### Bulk Select Offers API Use this endpoint when a user selects multiple offers at once. This is commonly used when implementing a "Select All" interaction in the User Selected Perks (USP) flow. - **HTTP Method:** POST - **URL: **[https://api.momentscience.com/sdk/v4/usp/\{\{session\_id}}/select.json](https://api.momentscience.com/sdk/v4/usp/\{\{session_id}}/select.json) ```javascript POST https://api.momentscience.com/sdk/v4/usp/{{session_id}}/select.json ``` **Replace:** - `{{session_id}}` with the session ID returned by the MomentPerks API **Headers** | **Header** | **Value** | **Required** | | --------------- | --------------------- | ------------ | | `Authorization` | Bearer \{\{API\_KEY}} | Yes | | `Content-Type` | application/json | Yes | **Request Body** :::CodeblockTabs Example Request Body ```javascript { "pub_user_id": "your_pub_user_id", "campaign_ids": [849, 850, 851] } ``` ::: | **Field** | **Type** | **Required** | **Description** | | -------------- | -------- | ------------ | --------------------------------------------------------------------------- | | `pub_user_id` | String | Yes | Unique, non-PII identifier for the end user. Must match previously used ID. | | `campaign_ids` | Array | Yes | Array of campaign IDs the user selected | :::CodeblockTabs Example cURL Request ```javascript curl -X POST \ "https://api.momentscience.com/sdk/v4/usp/{{session_id}}/select.json" \ -H "Content-Type: application/json" \ -H "Authorization: Bearer {{API_KEY}}" \ -d '{ "pub_user_id": "user_123456", "campaign_ids": [849, 850, 851] }' ``` ::: **Response Fields** | **Field** | **Type** | **Description** | | ----------------------- | -------- | ---------------------------------------------------- | | `session_id` | string | The session ID used in the request | | `selected_campaign_ids` | array | List of campaign IDs that were successfully selected | *** ### Bulk Unselect Offers API Use this endpoint when a user unselects multiple offers at once (e.g., "Unselect All") within the USP flow. **Endpoint** - **HTTP Method:** POST - **URL: **[https://api.momentscience.com/sdk/v4/usp/\{\{session\_id}}/unselect.json](https://api.momentscience.com/sdk/v4/usp/\{\{session_id}}/unselect.json) ```javascript POST https://api.momentscience.com/sdk/v4/usp/{{session_id}}/unselect.json ``` **Replace:** - `{{session_id}}` with the session ID returned by the MomentPerks API **Headers** | **Header** | **Value** | **Required** | | --------------- | --------------------- | ------------ | | `Authorization` | Bearer \{\{API\_KEY}} | Yes | | `Content-Type` | application/json | Yes | **Request Body** ```javascript { "pub_user_id": "your_pub_user_id", "campaign_ids": [849, 850, 851] } ``` | **Field** | **Type** | **Required** | **Description** | | -------------- | -------- | ------------ | --------------------------------------------------------------------------- | | `pub_user_id` | String | Yes | Unique, non-PII identifier for the end user. Must match previously used ID. | | `campaign_ids` | Array | Yes | Array of campaign IDs the user unselected | **Example cURL Request ** :::CodeblockTabs Example Request ```javascript curl -X POST \ "https://api.momentscience.com/sdk/v4/usp/{{session_id}}/unselect.json" \ -H "Content-Type: application/json" \ -H "Authorization: Bearer {{API_KEY}}" \ -d '{ "pub_user_id": "user_123456", "campaign_ids": [849, 850, 851] }' ``` Success Response ```none { "status": "success", "data": { "session_id": "abc123456789", "unselected_campaign_ids": [849, 850, 851] } } ``` ::: ** Success Response** | **Field** | **Type** | **Description** | | ------------------------- | -------- | ------------------------------------------------------ | | `session_id` | String | The session ID used in the request | | `unselected_campaign_ids` | Array | List of campaign IDs that were successfully unselected | ## Step 5: Retrieve Current Session State Use this endpoint to fetch the current state of a USP session, including: - Active session metadata - Available campaigns in the session - Currently selected campaign IDs This is useful for resuming sessions, pre-selecting previously chosen offers, or syncing UI state across devices. ### Use Cases | **Scenario** | **Why to Call This Endpoint** | | ------------------------------ | ---------------------------------------------------------------------- | | Resume session on app relaunch | Show previously selected offers and campaign list after a user returns | | Sync across devices | Restore selection state if the user switches from mobile to desktop | | Prepopulate selection UI | Populate your offer selection UI with current selection from backend | | QA / Debugging | Inspect current session state and selections for debugging or QA | ### Get Session State Endpoint Use this endpoint to fetch session details, selected offers, and metadata. - **HTTP Method: **GET - **URL:** [https://api.momentscience.com/sdk/v4/usp/session/\{\{session\_id}}.json?pub\_user\_id=\{\{pub\_user\_id}}](https://api.momentscience.com/sdk/v4/usp/session/\{\{session_id}}.json?pub_user_id=\{\{pub_user_id}}) ```javascript GET https://api.momentscience.com/sdk/v4/usp/session/{{session_id}}.json?pub_user_id={{pub_user_id}} ``` **Replace:** - `{{session_id}}` with the active session ID - `{{pub_user_id}}` with the unique user ID from your system **Headers** | **Header** | **Value** | **Required** | | ------------- | --------------------- | ------------ | | Authorization | Bearer \{\{API\_KEY}} | Yes | **Example cURL Request** :::CodeblockTabs Example cURL Request ```javascript curl -X GET \ "https://api.momentscience.com/sdk/v4/usp/session/{{session_id}}.json?pub_user_id={{pub_user_id}}" \ -H "Authorization: Bearer {{API_KEY}}" ``` Example Response (Truncated) ```json { "status": "success", "data": { "session": { "session_id": "d48734cd9d465f3285c8e38c917de44b7b6729d8", "pub_user_id": "MomentScience_USP_Demo", "user_id": 3507, "device": "desktop", "os": "windows", "browser": "chrome", "campaigns": [ { "campaign_id": 2955, "title": "Get $15 Cash Back on Today's Purchase", "cta_yes": "Claim Your $15", "cta_no": "No, Thanks", "image": "https://adpx.b-cdn.net/campaigns/1693/f5642bf0266822795a9f4d1827d977ce.png", "advertiser_name": "Shipments Free" }, { "campaign_id": 2966, "title": "Enter to win a $500 eBay Gift Card!", "cta_yes": "Claim Now!", "cta_no": "No, Thanks", "image": "https://adpx.b-cdn.net/campaigns/2966/b88b7ce4e1086282c85e461e51f37f64.jpg", "advertiser_name": "eBay" }, { "campaign_id": 3404, "title": "Your Dream Hawaiian Get-Away is Just a Click Away!", "cta_yes": "Yes Please", "cta_no": "No Thanks", "image": "https://adpx.b-cdn.net/campaigns/3404/1b24eaff41cfeebf04338544e7fe5372.png", "advertiser_name": "Hawaiian Airlines" } ], "selected": [2955, 2966, 3404], "sequence": [2955, 3404, 2966], "sdk_payload": { "country": "us", "dev": true } } } } ``` ::: **Key Response Fields ** | **Field** | **Type** | **Description** | | ---------------------------- | -------- | ------------------------------------- | | `session_id` | string | Unique session identifier | | `pub_user_id` | string | Your platform's user ID | | `campaigns[]` | array | Campaigns in the session | | `campaign_id` | int | Unique ID for each campaign | | `title`, `cta_yes`, `cta_no` | string | Text for UI display | | `image` | string | Primary image URL | | `selected[]` | array | IDs of currently selected campaigns | | `sequence[]` | array | Campaign display order | | `sdk_payload.dev` | boolean | Indicates sandbox vs. production mode | | `device`, `os`, `browser` | string | Basic user agent fingerprinting | | `_location.city/country` | string | Detected geo-location from IP | :::hint{type="success"} You can use the `selected[]` array to: - Mark offers as already selected in your UI - Enable a "Bulk Unselect" button if `selected.length > 0` - Enable a "Bulk Select All" using the IDs in `campaigns[].campaign_id` ::: ## Step 6: Complete the Session Once your user has reviewed and selected their desired offers, and completed their primary action (such as checkout or form submission), you must notify MomentScience that the USP (User Selectable Perks) session is complete. ### Complete Session API - **HTTP Method:** POST - **URL:** [https://api.adspostx.com/sdk/v4/usp/session/\{session\_id}.json](https://api.adspostx.com/sdk/v4/usp/session/\{session_id}.json) ```javascript POST https://api.adspostx.com/sdk/v4/usp/session/{session_id}.json ``` **Replace:** - `{session_id}` with the active session ID received during initialization. **Payload Parameters:** | **Parameter** | **Type** | **Required** | **Description** | | ------------- | -------- | ------------ | ------------------------------------------------- | | `pub_user_id` | String | Yes | Your internal user ID (should match session init) | :::CodeblockTabs Example Request ```javascript curl -X POST "https://api.adspostx.com/sdk/v4/usp/session/d48734cd9d465f3285c8e38c917de44b7b6729d8.json" \ -H "Authorization: Bearer b9a31935-a222-4bdd-bfc6-a63e6bb01e39" \ -H "Content-Type: application/json" \ -d '{ "pub_user_id": "MomentScience_USP_Demo" }' ``` Example Response ```json { "status": "success", "data": { "session": { "user_id": 3507, "sdk_payload": { "pub_user_id": "MomentScience_USP_Demo", "country": "us", "dev": true, "_location": { "country": "EG", "state": "ALX", "city": "Alexandria", "zipcode": null } }, "session_id": "d48734cd9d465f3285c8e38c917de44b7b6729d8", "user_agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36", "pub_user_id": "MomentScience_USP_Demo", "tags": [], "settings": {}, "source": "native:api", "device": "desktop", "os": "windows", "browser": "chrome", "fingerprint": "MomentScience_USP_Demo", "is_embedded": false, "is_mou": false, "is_offerwall": false, "parent_session_id": null, "sequence": [ 2955, 3404, 2966 ], "is_from_cache": true }, "selected": [ { "id": 5651, "campaign_id": 2955, "title": "Get $15 Cash Back on Today's Purchase", "description": "Get free shipping rebates on online purchases just for trying Shipments Free. Claim your $15 Cash Back Now!", "click_url": "https://adspostx.com", "image": "https://adpx.b-cdn.net/campaigns/1693/f5642bf0266822795a9f4d1827d977ce.png", "mini_text": "", "terms_and_conditions": "", "pixel": "https://adspostx.com/p.png", "cta_yes": "Claim Your $15", "cta_no": "No, Thanks", "useraction_cta": null, "useraction_url": null, "adv_pixel_url": "", "beacons": { "close": "https://adspostx.com/event/record/close?oid=5651&cid=2955&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo", "no_thanks_click": "https://adspostx.com/event/record/no_thanks_click?oid=5651&cid=2955&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo" }, "creatives": [ { "id": 4215, "url": "https://adpx.b-cdn.net/campaigns/1693/f5642bf0266822795a9f4d1827d977ce.png", "height": 300, "width": 400, "type": "png", "creative_type": "", "is_primary": true, "aspect_ratio": 1.33, "user_id": 0 }, { "id": 4966, "url": "https://adpx.b-cdn.net/campaigns/2955/2aefbd58fa4e2ac40eebdd076e873ba2.png", "height": 280, "width": 1000, "type": "png", "creative_type": "hero_image", "is_primary": false, "aspect_ratio": 3.57, "user_id": 0 }, { "id": 4967, "url": "https://adpx.b-cdn.net/campaigns/2955/0a64c7f84074b181a4b6631ac2db2195.png", "height": 150, "width": 150, "type": "png", "creative_type": "icon_image", "is_primary": false, "aspect_ratio": 1, "user_id": 0 } ], "offerwall_enabled": true, "perkswallet_enabled": true, "short_description": "Get free shipping rebates on online purchases just for trying Shipments Free. Claim your $15 Cash Back Now!", "short_headline": "Get $15 Cash Back on Today's Purchase", "advertiser_name": "Shipments Free", "is_loyaltyboost": false, "loyaltyboost_requirements": "", "save_for_later_url": "https://api.perkswallet.com/pwaas/save.json?o_id=5651&c_id=2955&p_id=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&pub_user_id=MomentScience_USP_Demo", "tags": [ "delivery", "rewards" ], "offer_description": "", "campaign": { "campaign_images": [ { "id": 4215, "url": "https://adpx.b-cdn.net/campaigns/1693/f5642bf0266822795a9f4d1827d977ce.png", "height": 300, "width": 400, "type": "png", "creative_type": "", "is_primary": true, "aspect_ratio": 1.33, "user_id": 0 }, { "id": 4966, "url": "https://adpx.b-cdn.net/campaigns/2955/2aefbd58fa4e2ac40eebdd076e873ba2.png", "height": 280, "width": 1000, "type": "png", "creative_type": "hero_image", "is_primary": false, "aspect_ratio": 3.57, "user_id": 0 }, { "id": 4967, "url": "https://adpx.b-cdn.net/campaigns/2955/0a64c7f84074b181a4b6631ac2db2195.png", "height": 150, "width": 150, "type": "png", "creative_type": "icon_image", "is_primary": false, "aspect_ratio": 1, "user_id": 0 } ], "offer_description": "", "is_product": false } }, { "id": 6075, "campaign_id": 3404, "title": "Your Dream Hawaiian Get-Away is Just a Click Away!", "description": "Need to get away? Hawaiian Airlines offers 150 daily flights within the Hawaiian Islands, and non-stop flights between Hawai'i and major US cities - more than any other airline. Book now and save!", "click_url": "https://adspostx.com", "image": "https://adpx.b-cdn.net/campaigns/3404/1b24eaff41cfeebf04338544e7fe5372.png", "mini_text": "", "terms_and_conditions": "", "pixel": "https://adspostx.com/p.png", "cta_yes": "Yes Please", "cta_no": "No Thanks", "useraction_cta": null, "useraction_url": null, "adv_pixel_url": "", "beacons": { "close": "https://adspostx.com/event/record/close?oid=6075&cid=3404&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo", "no_thanks_click": "https://adspostx.com/event/record/no_thanks_click?oid=6075&cid=3404&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo" }, "creatives": [ { "id": 6078, "url": "https://adpx.b-cdn.net/campaigns/3404/1b24eaff41cfeebf04338544e7fe5372.png", "height": 300, "width": 300, "type": "png", "creative_type": "offer_image", "is_primary": true, "aspect_ratio": 1, "user_id": 0 } ], "offerwall_enabled": true, "perkswallet_enabled": false, "short_description": "Hawaiian Airlines offers 150 daily flights within the Hawaiian Islands, and non-stop flights between Hawai'i and the US. Book now and save!", "short_headline": "Your Dream Hawaiian Get-Away is Just a Click Away!", "advertiser_name": "Hawaiian Airlines", "is_loyaltyboost": false, "loyaltyboost_requirements": "", "save_for_later_url": "https://api.perkswallet.com/pwaas/save.json?o_id=6075&c_id=3404&p_id=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&pub_user_id=MomentScience_USP_Demo", "tags": [], "offer_description": "", "campaign": { "campaign_images": [ { "id": 6078, "url": "https://adpx.b-cdn.net/campaigns/3404/1b24eaff41cfeebf04338544e7fe5372.png", "height": 300, "width": 300, "type": "png", "creative_type": "offer_image", "is_primary": true, "aspect_ratio": 1, "user_id": 0 } ], "offer_description": "", "is_product": false } }, { "id": 5662, "campaign_id": 2966, "title": "Enter to win a $500 eBay Gift Card!", "description": "Take a quick survey for a chance to win a $500 eBay Gift Card. Your opinion counts!", "click_url": "https://adspostx.com", "image": "https://adpx.b-cdn.net/campaigns/2966/b88b7ce4e1086282c85e461e51f37f64.jpg", "mini_text": "", "terms_and_conditions": "", "pixel": "https://adspostx.com/p.png", "cta_yes": "Claim Now!", "cta_no": "No, Thanks", "useraction_cta": null, "useraction_url": null, "adv_pixel_url": "", "beacons": { "close": "https://adspostx.com/event/record/close?oid=5662&cid=2966&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo", "no_thanks_click": "https://adspostx.com/event/record/no_thanks_click?oid=5662&cid=2966&pid=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&fp=MomentScience_USP_Demo" }, "creatives": [ { "id": 4410, "url": "https://adpx.b-cdn.net/campaigns/2966/b88b7ce4e1086282c85e461e51f37f64.jpg", "height": 400, "width": 400, "type": "jpg", "creative_type": "", "is_primary": true, "aspect_ratio": 1, "user_id": 0 }, { "id": 5425, "url": "https://adpx.b-cdn.net/campaigns/2966/b1fec4ae049fc904c3bc28dcff5b4f46.png", "height": 150, "width": 150, "type": "png", "creative_type": "icon_image", "is_primary": false, "aspect_ratio": 1, "user_id": 0 }, { "id": 5609, "url": "https://adpx.b-cdn.net/campaigns/2966/3f9e43b0952e5696669a13fa94f1af11.png", "height": 448, "width": 1600, "type": "png", "creative_type": "hero_image", "is_primary": false, "aspect_ratio": 3.57, "user_id": 0 } ], "offerwall_enabled": true, "perkswallet_enabled": true, "short_description": "Take a quick survey for a chance to win a $500 eBay Gift Card. Your opinion counts!", "short_headline": "Enter to win a $500 eBay Gift Card!", "advertiser_name": "eBay", "is_loyaltyboost": false, "loyaltyboost_requirements": "", "save_for_later_url": "https://api.perkswallet.com/pwaas/save.json?o_id=5662&c_id=2966&p_id=3507&sess_id=d48734cd9d465f3285c8e38c917de44b7b6729d8&pub_user_id=MomentScience_USP_Demo", "tags": [], "offer_description": "", "campaign": { "campaign_images": [ { "id": 4410, "url": "https://adpx.b-cdn.net/campaigns/2966/b88b7ce4e1086282c85e461e51f37f64.jpg", "height": 400, "width": 400, "type": "jpg", "creative_type": "", "is_primary": true, "aspect_ratio": 1, "user_id": 0 }, { "id": 5425, "url": "https://adpx.b-cdn.net/campaigns/2966/b1fec4ae049fc904c3bc28dcff5b4f46.png", "height": 150, "width": 150, "type": "png", "creative_type": "icon_image", "is_primary": false, "aspect_ratio": 1, "user_id": 0 }, { "id": 5609, "url": "https://adpx.b-cdn.net/campaigns/2966/3f9e43b0952e5696669a13fa94f1af11.png", "height": 448, "width": 1600, "type": "png", "creative_type": "hero_image", "is_primary": false, "aspect_ratio": 3.57, "user_id": 0 } ], "offer_description": "", "is_product": false } } ] } } ``` ::: - Always complete the session after the user’s final decision to ensure selected offers are saved. - You can inspect the selected array in the response to confirm which offers were logged. - Ensure you’re using the same pub\_user\_id used in the session initialization step. *** 📢 If you're running into any issues while going through the integration process, feel free to contact us at [help@momentscience.com](mailto\:help@Momentscience.com)