Introduction to logic building in Arengu: How to get started in the Flows editor

Introduction to logic building in Arengu: How to get started in the Flows editor

You've heard it before: Arengu is much more than a form builder, it's the brain behind your forms. And the flows editor is the section you need to add this intelligence to your forms, the section where you can build server-side logic without having to code.

Adding flows to your forms is the way to obtain smarter forms, apply your own business rules, trigger dynamic behaviour, adding integrations with third-party tools... Anything! If you don't know where to start, we've got you covered. Here's everything you need to know to get started with your flows.

A quick overview to the Flows Editor

Flows can be added in different stages of your form. You just need to think about what you want to happen in every stage of the form to add the logic in the right moment.

The Flows editor allows you to add different types of actions, make connections between them and connect them to your form. By adding actions, you can create a personalized and flexible behaviour for your forms.

Arengu's suite of actions

The suite of actions will open once you click on the plus button in the editor. In the suite of actions, you will see different types of actions. This is everything you can find here, and what you can do with them, in a nutshell:

Form actions: Arengu's own actions to complement your form

In order to execute actions and complement your form's behavior, you can use form-related actions, that don't require external platforms. These actions include a wide variety of actions: generating and verifying one-time passwords, setting cookies, mapping input data, verifying email addresses, and much more!

How to configure form actions

Since these are Arengu's own actions, you won't be needing any API keys or external values. All you need to do is adding references, so these actions are connected to each other. It's kind of assembling the gears together!

👉 Making reference to input and output values is key to interconnect every piece of your and get it working. Learn more about our referencing system with our step-by-step guide.

Form navigation actions

Arengu's actions also help you set a defined navigation process along the form. You can choose to skip steps and jump to a selected step, continue with the predefined order of steps, etc.

These actions allow you to establish different form paths for different users. When combined with the If/then condition, you can apply your own conditional logic and then trigger different form paths for a dynamic and personalized form.

👉 Learn more about dynamic forms and how to display different forms paths by using Arengu's form navigation actions.

In this example, the form will skip a step if there aren't additional users. 

How to configure form navigation actions

Configuring form navigation actions is really simple. All you need to do is select the step where you want the user to be sent, and they will be working properly and dynamically.

Native actions and integrations with third-party tools

You can use native actions to trigger events that happen in third-party platforms.

You can use these actions to create form actions for a particular platform —like the WordPress and PrestaShop actions— or to add integrations with third-party tools or platforms. This is useful if you want to connect your form with your day-a-day tools, to execute actions related to the flow, or to automate actions.

You can find integrations with Clearbit, Hubspot, MailChimp, MailJet, Pipedrive, PrestaShop, SendGrid, Slack, Telegram, Twilio, WordPress, Zapier, and more.

Conditional logic in forms: Social login in WP
This is an example of a login flow for WordPress, with two different kinds of login. As you can see, both the URL and the API key are needed.

How to configure native actions

In order for the native actions to work, you need to have an account in the correspondent platform. The connection is API based, so you need to find your API keys in your account settings, in the correspondent platform.

Conditional logic: Adding if/then conditions

The If/then condition is the action you need if you're looking to build conditional logic. This action will generate branches, and trigger additional actions of your choice. Hence, you can use it to trigger different behaviors according to your own business rules.

Adaptive signup flow with Arengu & Auth0 Signals
In this example, we're analyzing the risk level of the user to determine if there is a need for a second authentication factor. To do so, an If/then condition is needed.

How to add conditional logic to your forms

In order to add conditional logic to your Arengu form, you just need to select the If/then condition from the suite of actions. Then, you need to select the rules you need to apply. Select the condition from the drop-down menu, and add additional criteria if necessary.

👉 Do you want to know more about building forms with conditional logic?
Learn how to build a signup flow with conditional logic or
how to apply conditional logic to shopping cart

Connecting to your own API-based service

If you haven't found the action you need, you don't have to worry. You can connect Arengu with any third-party service, as long as it has an API. Therefore, if you're missing a certain native action or if you want to connect to your own services, you can do so by adding the HTTP action.

This "magic" action allows you to call any API and execute the actions you need. Just keep in mind you will need basic coding skills to configure it.

When working with JSON objects or using your own HTTP actions, you can use this set of tools for a variety of actions: converting objects in different formats, serializing strings, creating JSON objects and more.

The executions tab: Debugging your flow

The executions tab is the place where you'll find every flow execution. Here, you can find a list with all the executions, and click on each of them to see the details.

If the process went wrong, the execution will be listed in red under Failed. Open it to see the error and easily debug it. After this, your flow will be working correctly.

Click on each action to see input/output data and errors in the editor.

You can also check the executions tab to find valuable information, such as output data returned from third-party actions. In the example below, you can find all the data that was gathered by Clearbit, and that is now part of your user's database.

Form builder with debugger

Are you ready to become a pro in logic building? Try Arengu for free and start building server-side logic for yourself, without having to code. You can also schedule a demo with our team to know everything about Arengu or keep reading the Guides & Tutorials section in our blog.


Ana Vilar García

Marketing Specialist at Arengu

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