External Client Apps in Salesforce Spring '26: A Practical Migration Guide

External Client Apps in Salesforce Spring '26: A Practical Migration Guide If you're an admin or developer who's been putting off learning about External Client Apps, Spring '26 just made that decision for you. As of the Spring '26 release, Salesforce disables the creation of new Connected Apps by default in every org. You can still flip a setting to create them short term, but the writing is on the wall. External Client Apps (ECAs) are the future, and the sooner you get comfortable with them, t