Marketo Engage + Salesforce CRM Integration Update: OAuth 2.0 Readiness

As shared in prior communications, Adobe Marketo Engage is rolling out an updated version of the Salesforce CRM integration through a phased rollout.

To ensure a seamless upgrade, customers must meet Salesforce’s latest connected app OAuth 2.0 requirements in their Salesforce instance. OAuth 2.0 is a new Salesforce platform/security standard, and customers are responsible for updating their Salesforce Connected App configuration to remain compliant. This update is required to support the latest version of the Marketo Engage Salesforce CRM integration.

Who this impacts

Any customer with an active Marketo Engage Salesforce Native CRM integration in both Sandbox and Production.

What you should do now

• Proactively flag this dependency and engage with your Salesforce Admin / IT team to review OAuth settings.
• Validate both Sandbox and Production environments so you are ready when your Marketo instance is included in the phased rollout of the new Salesforce CRM integration.

Salesforce has published guidance on upcoming Connected App usage restrictions and recommended admin steps. Here are some helpful links that provide additional details, as well as a timeframe:

• https://admin.salesforce.com/blog/2025/get-ready-for-changes-to-connected-app-usage-restrictions
• https://help.salesforce.com/s/articleView?id=005132110&type=1

Important Note: To support the updated Salesforce CRM integration and reduce the risk of upgrade delays or follow-up changes, customers should transition their Salesforce Connected App to OAuth 2.0 by Friday, May 22, 2026.

Thank you.