DocumentationMarketo EngageMarketo Guide

Release Notes: July 2026 release-notes-july-26

Last update: June 18, 2026

Below you’ll find all the features included in the July '26 release. Check your Adobe Marketo Engage edition for feature availability.

The Release Notes specifically for Adobe Dynamic Chat can be found here.

Standard Release Cycle Features standard-release-cycle-features

The following features fall under the standard release cycle and will start to be released on July 10, 2026, with a phased rollout of remaining features over the subsequent weeks. Release features and dates are subject to change. Please check next to each feature for its status.

Feature
Status
Documentation
Marketo AI Skill - Product knowledge: Product knowledge gives you on-demand access to Marketo expertise without leaving the platform. Ask a question in plain language and Marketo AI draws on official Adobe documentation to answer it.
Open beta
Product knowledge
Marketo AI Skill - Investigate leads: Find out why a specific person/lead did not reach a milestone (like MQL, program qualification, or a campaign) and get a plain-language explanation of what happened.
Open beta
Investigate leads
Email Designer - AI Assistant Contextual Menu: The AI Assistant features of the Email Designer can now be accessed from the contextual menu (the black bar). For example, when you select text content, the AI Assistant icon appears on the contextual menu, allowing you to perform quick actions from there.
Coming soon
Coming soon

Announcements announcements

  • Rest API ‘access_token’ Parameter Deprecation: The access_token query parameter used to authenticate Marketo REST API calls is being deprecated and will not be available after July 31, 2026. All new and existing integrations should authenticate REST API calls using the ‘Authorization’ header, as described here.

  • REST API Merge Leads limit: Beginning July 31, 2026, calls that include more than 25 IDs in the leadIds parameter of a Merge Leads API call will result in a 1080 error code, and the call will be skipped. Jobs requiring the merger of more than 25 records into one should be split into multiple jobs to ensure the success of those calls.

  • SOAP API Deprecation: Support for the Marketo SOAP API will end on July 31, 2026. Services which use SOAP API capabilities should be migrated to the REST API.

  • Static List Size Limits for Get Lead Activities and Get Lead Changes: Beginning September 30, 2026, calls to the Get Lead Activities and Get Lead Changes endpoints that include the listId parameter will return a 1003 error code if the target static list contains 10,000 or more leads. Consult the Migration Guide for more information.

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