Article #000001369
Summary
After the 'Enable ICU Locale Formats' critical update was enabled, Focus Matters secured logins must be set up to use Focus Matters functionality.
Question
Why am I receiving the error below when I navigate to the Focus Matters/Matter Calendar/Gantt/Billing Preview/Task Checklist lightning components?
This session is not valid for use with the REST API
or
Malformed JSON: Expected
Resolution
Due to the recent critical update that was auto-enabled in the Salesforce Spring '25 release, the platform now requires Secured Logins to be enabled to effectively activate Focus Matters-based functionality.
You can learn more about adopting the ICU Locale Formats here.