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123FormBuilder and PayFast Integration

PayFast is a payment processor for South Africa, therefore it will accept payments only in South African Rands. The first step in setting up the integration is to get the needed information from your PayFast account. Please log in to your PayFast account and go to Settings. There, under Merchant identifiers, you can find your Merchant ID and Merchant Key.
payfast integration merchant settings
1. How to set up PayFast as a merchant
In order to make the necessary settings for the PayFast integration, go to your 123FormBuilder account and navigate to your Form Editor. Under the E-Commerce section, choose from the list PayFast.

Provide your Merchant ID and Merchant Key (which you previously prepared in your PayFast account). Make sure you select Enable on the top of the integration.

PayFast payment gateway integration

You need to set the Currency to South African Rand. To do so, open your payment summary and change the currency for your form.

Change currency

Another method to change the currency is by clicking on View Inventory:

PayFast payment gateway integration

PayFast payment gateway integration

2. How your users will complete the payment
Once the online order form is completed and submitted, the user will be redirected to PayFast in order to make the payment. On the PayFast website, there are two cases:

    1. a. if you have a PayFast account – just fill in your login data under

Returning buyer

    1. b. if you don’t have a PayFast account – you have to register for an account by filling in the required information under

First-time buyer

payfast login

3. How to make test payments
If you don’t want to make a real payment, but just want to test the integration, different settings should be made in your 123FormBuilder account:

a. Enable your integration with the following information:

Merchant ID: 10000103

Merchant Key: 479f49451e829

b. Tick Use sandbox

payfast login

Then, once redirected to PayFast, you need to log in under Returning buyer with the following data:


Password: clientpass

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Frequently Asked Questions

Here is a list of the most frequently asked questions. For more FAQs, please browse through the  FAQs page.

Is this service free?
Yes, we offer a free form builder service. Just sign up to the Basic plan and you are all set. This plan is forever free, but you are limited with a few features only, such as 5 forms per account, 100 submissions per month and you have to keep the backlink to 123FormBuilder on your forms. Check out our features matrix for more information.
How many forms can I create?
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How do I change my form design?
You can change the design of your form for more information. in the Themes section, which is located in your form settings. We offer a set of more than 30 predefined form themes for your forms, but you can also create your own from scratch. You can customize the submit button, the logo and more. To apply your own stylesheets, all forms come with a custom CSS editor.

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