Migrating Workflow Rules and Process Builder to Flow
Key Takeaway
Use the Migrate to Flow tool to move workflow rules and processes to Flow Builder. Rebuild by hand what the tool can't migrate, and test in a sandbox before you activate the new flow and deactivate the original.
Workflow Rules and Process Builder are Salesforce's older point-and-click automation tools, and Flow Builder replaces both of them. You can't create new workflow rules or processes, and Salesforce stopped supporting them on December 31, 2025. Existing automations should move to Flow Builder. The Migrate to Flow tool converts many of them automatically. Some features need partial or manual rework, and the results need careful testing.
Why move to Flow Builder
Starting in Winter '23, you can't create new processes or workflow rules. You can still activate, deactivate, and edit existing ones. Since December 31, 2025, Salesforce gives no customer support or bug fixes for either feature.
Active workflow rules and processes keep running after that date. The risk of not migrating is automation with no support, not automation that suddenly stops.
Flow Builder combines the capabilities of workflow rules and Process Builder in one point-and-click tool. Salesforce recommends it for all new automation. Keeping all automation in one tool makes it easier to maintain, troubleshoot, and debug.
Entry conditions let a flow run only when certain conditions are met, which improves performance. The "Fast Field Updates" option makes flows run almost 10 times faster than workflow rules and processes.