How to Integrate PayLexer with FluentCart

Overview

FluentCart is a lightweight WordPress shopping cart and checkout plugin designed for creators, coaches and digital product sellers. It lets you sell products and services with a streamlined checkout directly from your WordPress site. PayLexer integrates with FluentCart to handle secure payment processing across multiple gateways, such as Stripe, Airwallex, Paystack, Square and more.

Supported Features

• One-time payments - Accept full payment for a product or service in a single transaction.
• Multiple payment gateways and websites - Connect and manage several gateways and websites from one PayLexer account.
• Test mode via FluentCart's Store Mode - Test payments safely without real charges before going live.
• Live payments - Process real transactions securely once setup is verified.
• Simplified checkout - A streamlined checkout flow for better conversion.

Before You Start

Make sure you have the following before starting:

• Admin access to your WordPress site.
• FluentCart installed and active. Download FluentCart →
• The email address you want to use for PayLexer. If you don't have a PayLexer account yet, one is created for you while you connect.
• A payment gateway account, such as Stripe or Paystack. If you're new to PayLexer, you configure it after connecting your website. Choose and configure a gateway →

Setup Journey

If you haven't configured PayLexer yet, follow these steps in order before continuing:

Integration Steps

Customize Gateway Settings

Once a payment gateway is enabled, you can change how it appears to your customers at checkout. This works for every payment gateway. The steps below use Paddle as an example.

This is useful when you want to show a friendlier name to your customers. For example:

• Show "Credit Card" instead of "Paddle" or "Stripe", since most customers don't know the gateway name.
• Translate the label for your audience, such as "Tarjeta de crédito" for Spanish or "Carte bancaire" for French.
• Add checkout instructions in your customer's language.
• Upload a logo that matches your store's branding.

Go to FluentCart → Settings → Payment Settings, find the gateway, click Manage, then click the Edit icon.

You can update the following fields:

• Checkout Label - The name customers see when they choose a payment method at checkout. By default this is the gateway name, for example "Paddle". Change it to something more familiar to your customers.
• Checkout Logo - A logo or icon shown next to the payment option at checkout. You can use the gateway's own logo or a generic card icon.
• Checkout Instructions - Optional text shown on the checkout page after a customer selects this payment method. Use it to guide them, for example "You will be redirected to complete your payment securely."
• Thank You Page Instruction - Optional text shown on the confirmation page after a successful payment. Use it to tell customers what happens next, such as a delivery timeline or a download link notice.

Click Update in the top right to save.

Store Mode

PayLexer supports full testing without real charges through FluentCart's Store Mode.

How Store Mode Works

PayLexer reads the Store Mode setting directly from FluentCart, so you don't need to set a test toggle on each gateway.

To set or check your Store Mode:

1. Go to FluentCart → Settings → Store Settings → Store Setup.
2. Find the Store Mode field.
3. Select Test for setup and testing, or Live for real transactions.

When Store Mode is set to Test:

• PayLexer uses your Test credentials from the Payment Gateway Configuration page.
• FluentCart orders are created normally.
• Payments are processed in test mode.

When Store Mode is set to Live, PayLexer uses your Live credentials instead.

Payment Flow Overview

A new PayLexer order is created for every payment attempt. Each order appears under Orders in both PayLexer and FluentCart.

Next Steps: Test Transactions

After enabling gateways, check the full payment flow before going live.

• Basic testing: Set Store Mode to Test as shown above to create orders without real charges.
• Advanced testing (refunds, multi-gateway): Follow the dedicated guide, which uses Stripe as an example. Test Transactions & Platform Integration →

Troubleshooting

Best Practices

• Always test with Test credentials before switching to Live.
• Enable webhooks for better reliability and real-time payment event syncing.
• Run one small real payment after going live to confirm everything works end to end.
• Test the complete checkout flow, including confirmation emails.
• Monitor both the PayLexer and FluentCart dashboards during the initial testing period.

Final Checklist

Before going live, confirm all of the following:

• The Connected to PayLexer card shows Active in WordPress
• Your website shows as Connected in the PayLexer Websites table
• FluentCart shows as Activated under Supported Integrations
• At least one gateway is added to your website
• At least one PayLexer gateway has Payment Activation turned on in FluentCart
• Payment gateway tested successfully with Store Mode set to Test
• Confirmation emails working properly
• Live credentials added (not just test)
• Store Mode set to Live in FluentCart → Settings → Store Settings → Store Setup

FAQs

Still Have Questions?

Check the FAQs above first. If your question isn't covered there, choose the option that fits:

For settings and advanced configuration, see the FluentCart documentation.