How to build server-side logic in Bubble with backend workflows

Backend workflows in Bubble let you run logic on Bubble’s servers instead of in the browser. You use them for things like delayed actions, processing data in bulk, sending webhooks, or running logic securely. To build server‑side logic, you create a Backend Workflow, define its parameters, add backend actions inside it (like making changes to the database or calling APIs), and then trigger it either from the front end, another workflow, or on a schedule.

What Backend Workflows Are

A backend workflow is simply a workflow that runs without involving the user’s browser. Bubble executes it on its server. That means:

• No page reload or user wait time.
• More secure (because you can hide keys and sensitive logic).
• Can run later using “Schedule API Workflow”.

How to Enable Them

Go to the left menu → Backend → Workflows. If you don’t see it, enable “Backend workflows” in Settings → API.

How to Build One

You create a new API Workflow. Think of it as a function that accepts inputs and runs logic.

• Create a new API Workflow and give it a name like process\_order.
• Add parameters (for example: order\_id, text).
• Add actions such as Make changes to a thing or Run API call.

How to Trigger It

• Schedule API Workflow — run it once at a specific time.
• Schedule API Workflow on a list — run it for every item in a list.
• Manual API call — call it from external systems (if exposed as public API).

// Example: Passing an Order’s unique ID into a backend workflow
// Front-end workflow action: Schedule API Workflow
order_id = Current User's Cart's Order's unique id
scheduled date = Current date/time + minutes: 5

Common Use Cases

• Sending emails or texts after a delay.
• Creating invoices or Stripe actions server-side.
• Processing thousands of items safely.
• Webhooks (Bubble receives data in backend workflows).

If you understand how to: create a backend workflow, add parameters, add actions, and schedule it, you can build nearly all server‑side logic in Bubble.