--- title: "LinkedIn API Adds Seniority Filters, 180-Day Window | traxy" description: "LinkedIn published version 202609 of its Marketing API this month, and three of the changes matter to anyone measuring B2B pipeline from LinkedIn." canonical: "https://traxy.ai/news/linkedin-s-september-api-release-lets-you-filter-engaged-accounts-by-seniority-and-adds-a-180-day-attribution-window" last_updated: "2026-09-21T00:00:00.000Z" --- # LinkedIn API Adds Seniority Filters, 180-Day Window | traxy > LinkedIn published version 202609 of its Marketing API this month, and three of the changes matter to anyone measuring B2B pipeline from LinkedIn. [Home](https://traxy.ai/) [News](https://traxy.ai/news) News # LinkedIn's September API Release Lets You Filter Engaged Accounts by Seniority — and Adds a 180-Day Attribution Window LinkedIn published version 202609 of its Marketing API this month, and three of the changes matter to anyone measuring B2B pipeline from LinkedIn. By the traxy teamSep 21, 20263 min read ![LinkedIn's September API Release Lets You Filter Engaged Accounts by Seniority — and Adds a 180-Day Attribution Window — traxy news](https://traxy.ai/assets/news-covers/linkedin-s-september-api-release-lets-you-filter-engaged-accounts-by-seniority-and-adds-a-180-day-attribution-window.jpg) **In this story**[Why it matters](https://traxy.ai/news/linkedin-s-september-api-release-lets-you-filter-engaged-accounts-by-seniority-and-adds-a-180-day-attribution-window#why-it-matters) [The limit of account-level data](https://traxy.ai/news/linkedin-s-september-api-release-lets-you-filter-engaged-accounts-by-seniority-and-adds-a-180-day-attribution-window#the-limit-of-account-level-data) [Open product docs](https://docs.traxy.ai/) LinkedIn published version **202609** of its Marketing API this month, and three of the changes matter to anyone measuring B2B pipeline from LinkedIn. The headline change is in the Company Intelligence API. Starting with 202609, the `accountIntelligence` finder accepts three new optional filters — `campaignGroup`, `objectiveType` and member `seniority` — alongside the existing `campaign` filter, according to LinkedIn's developer documentation. Only one can be passed per request. The `seniority` filter is the notable one: it works only with a `LAST_90_DAYS` lookback window, and only when none of the campaign, campaign group or objective-tytrape filters are in use. Versions 202608 and below do not support any of them. Two further changes: - **Conversions API now accepts hashed names.** The `userInfo` object on `/conversionEvents` supports new optional `hashedFirstName` and `hashedLastName` fields next to the existing plaintext ones. Values must be lowercased, stripped of spaces and punctuation, UTF-8 encoded, then SHA-256 hashed to exactly 64 hex characters. A valid `userInfo` needs either `firstName` or `hashedFirstName`, plus either `lastName` or `hashedLastName`. - **A 180-day attribution window.** `postClickAttributionWindowSize` and `viewThroughAttributionWindowSize` on the conversion rule schema now accept `180` in addition to `365`, for conversion types including `QUALIFIED_LEAD`, `LEAD`, `MARKETING_QUALIFIED_LEAD`, `SALES_QUALIFIED_LEAD`, `SUBMIT_APPLICATION`, `PURCHASE` and `ADD_TO_CART`. This one is available on all active versions, not just 202609. Separately, teams still running old versions have a clock: LinkedIn's versioning page carries a deprecation notice that Marketing Version 202510 sunsets on October 15, 2026. ## Why it matters Company Intelligence exists because LinkedIn's ad reporting is account-shaped, not person-shaped: it returns company-level engagement score, paid impressions, clicks, leads, paid qualified leads, conversions, CPQL and organic engagements for companies that engaged with your brand. The seniority filter changes what you can ask of it. "Which target accounts engaged" is an ABM question. "Which accounts had _senior_ people engaging in the last 90 days" is a prospecting question — it is the difference between a heat map and a call list. The hashed-name fields are the quieter signal. LinkedIn has spent the last several releases moving conversion matching toward hashed identifiers and tighter consent handling — the same direction every major ad platform has taken. If your CAPI implementation still ships plaintext names, this is a privacy-review item with a deadline attached, not an optional upgrade. The 180-day window is an admission about B2B reality. Long cycles broke the default attribution math, and 365 days was too blunt an instrument for most teams. Choosing 180 changes reported conversion counts, so pick it deliberately and note the date you switched, or your quarter-over-quarter numbers will move for reasons that have nothing to do with performance. ## The limit of account-level data Even with the new filters, this is still aggregate data about companies, resolved at best to a seniority band, in 90-day buckets, for people who touched your _paid_ media. It tells you an account is warm. It does not tell you which human to write to, what they looked at, or whether they came back. That last part is where most LinkedIn pipeline actually comes from. Someone who engages with three or more posts in 30 days behaves nothing like a single-touch engager, and no account-level report separates them. [LinkedIn intent data](https://traxy.ai/blog/linkedin-intent-data-buying-signals-guide) is individual-level by nature: a named person, a specific action, a timestamp. The API gives you the company. The engagement gives you the contact. traxy watches who engages with your LinkedIn content, checks each engager against your ICP, and routes qualified matches to Slack or your CRM — individual-level intent to sit underneath the account-level picture LinkedIn reports. [Try it free for 7 days.](https://traxy.ai/) **Sources:** Microsoft Learn, "Recent Marketing API Changes — LinkedIn" (Version 202609); Microsoft Learn, "Company Intelligence API"; Microsoft Learn, "LMS API Documentation Versioning." [Back to all news](https://traxy.ai/news) ## Keep reading [News2 min read ## ChatGPT Clicks Showed Up as Direct Traffic for a Week — AI Referral Data Is a Measurement You Rent From October 8, ChatGPT links lost their tracking tag, sending AI visits to Direct in GA4. A fix reportedly began rolling out October 15. 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Oct 19, 2026Read story](https://traxy.ai/news/salesforce-plugs-zoominfo-data-into-its-hunter-sdr-agent-ai-sellers-are-only-as-good-as-the-signals-they-can-see) The right people are already out there. ## Find your warmest leads. _Send them personalized messages._ From relevant interest to personalized outreach. Put traxy to work. 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