How to Migrate from Workflows and Process Builder to Flows in Salesforce

The way you automate your processes in Salesforce can make the difference between an efficient operation and invisible chaos. With the shift to Flows, Salesforce is redefining productivity and scalability by bringing all automations together under a single modern, visual, and scalable tool.

This is not merely an upgrade, but a key step toward greater efficiency. Migrating your automations to Flows allows you to improve performance, reduce errors, and centralize business logic—all within a modern, user-friendly interface.

In this guide, we explain why and how to migrate, as well as how to ensure your new Flows perform optimally from day one.

Why migrate to Flows?

Salesforce is consolidating declarative automation into one primary tool: Flow. This improves performance, reduces duplication, and centralizes business logic in a more modern and flexible interface. Before-save flows, for example, are up to ten times faster than traditional automations. In addition, centralizing everything in one place prevents process duplication and provides greater clarity. Salesforce has also confirmed that Workflows and Process Builder will become obsolete, so adapting is essential to keeping the platform current and future-ready.

In summary:

• Speed: processes up to 10 x faster.
• Centralization: fewer errors and greater control.
• Scalability: ready for upcoming Salesforce updates.
• Simpler maintenance: fewer dependencies and better organization.

“Migrating to Flows is not just a technical upgrade—it is a strategic decision that enables frictionless scaling.”

How to plan your migration

1. The first step in the migration is to create an inventory of all existing automations. List your Workflows and Process Builders by object, action type, and priority. Identify which ones are still useful, which ones overlap, and which ones no longer add value. This will allow you to plan a cleaner migration.
2. The next step is to choose the right type of Flow for your needs. Before-save record-triggered flows are ideal for updating fields on the same record; after-save flows are used to create related records, send emails, or call Apex; and scheduled paths replace the scheduled actions in legacy Workflows.
3. Before deploying your new Flows, test everything in a sandbox environment. Test different scenarios, compare the results with those of the previous automations, and document every change. This will help ensure that everything works correctly before it is moved to production.
4. Once they have been validated, deactivate the legacy Workflows and Process Builders and activate the new Flows. Use Salesforce monitoring tools such as "Debug Logs" and "Flow Error Emails" to ensure that everything runs smoothly. It is always advisable to have a rollback plan in case anything does not behave as expected.

Checklist: Is your organization ready to migrate to Flows?

• Have you created an inventory of all your Workflows and Process Builders?
• Do you know which ones are redundant or unnecessary?
• Does your team understand the logic behind each automation?
• Have you tested your new Flows in a sandbox?

The official tool: Migrate to Flow

It is important to note that Salesforce introduced the “Migrate to Flow” option to simplify the transition from Workflows and Process Builders. This tool converts simple automations into Flows with just a few clicks while preserving their original logic. However, more complex processes are still better candidates for being rebuilt from scratch to take full advantage of the capabilities of Flows.

Common migration mistakes

• Migrating without a prior inventory: if you do not understand what each automation does, you risk replicating obsolete rules.

• Duplicating logic: keeping Workflows, Process Builder, and Flows active at the same time can lead to duplicate updates or unexpected results.

• Failing to define the order of execution: multiple Flows on the same object can conflict with one another without a clearly designed strategy.

• Migrating everything “exactly as before”: Flow makes it possible to redesign logic more effectively, so copying the legacy process as-is is not always the best approach.

• Failing to test negative scenarios: testing the happy path is not enough; you also need to validate errors, incomplete data, and permissions.
• Failing to document: every Flow should include a description, purpose, object, input/output, and functional owner.

Migrating everything at once is not advisable. The best approach is to proceed by object or business process, prioritizing critical, redundant, or high-maintenance automations. For example, start with Lead, Opportunity, or Case, validate the impact in a sandbox, document the results, and only then move to production.

Why you should migrate now

Migrating to Flows is not simply about following Salesforce trends—it is a strategic decision. It allows you to centralize processes, improve speed, and use the migration as an opportunity to clean up automations that no longer add value.

At AT Vault, we support companies throughout this transition, helping them design efficient, clear, and sustainable Flows.

Frequently asked questions

Will Workflow Rules and Process Builder stop working?

Salesforce has placed them in retirement: new ones can no longer be created, and support is declining. Existing ones continue to run, but each release increases the risk associated with relying on frozen technology.

Is the migration automatic?

Partially: the Migrate to Flow tool converts simple use cases. The real value lies in using the migration as an opportunity to redesign—consolidating duplicate automations and documenting processes whose original purpose no one could remember.

How long does it take to migrate all my automations?

It depends on the inventory: dozens of simple rules can be migrated in days, while complex processes with chained logic require redesign and testing. The initial inventory—what exists and what it does—accounts for 50% of the work.