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When your gateway has credentials connected (the wizard’s Connect step), Payments → Integrations shows a Test action. It opens the test checkout panel so you can validate the full cycle before production.

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How to test

1

Fill in the test data

Enter order and customer data: name, phone, reference id, amounts, tax, and currency. Optional fields only appear if your body template or headers use them.
Test checkout panel of a custom gateway, with name, phone, amount, and currency fields

Test checkout panel, with the order and customer data

2

Review the preview

The panel shows live how the request looks with placeholders already replaced, before anything is sent to the PSP.
3

Generate the test payment

On confirm, Jelou calls your gateway and shows the resulting paylink with the PSP response, or an error message if it’s rejected.
The test panel includes a return URL field. It does not include cancellation or channel/user identifiers.
Run this flow against the PSP’s sandbox or test mode before going to production or using the gateway in a live Brain flow.

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Checklist before production

1

JelouPayments credentials

Confirm your company has JelouPayments credentials configured.
2

Correct environment

Validate first in Sandbox (or the PSP’s test mode) before creating the Production equivalent.
3

PSP credentials

Every secret your PSP needs is declared, and sensitive ones are typed as Secret.
4

Verified request

The URL, method, body, payment link path, and transaction id path match the PSP’s real API—verified with Test.
5

Valid placeholders

Review body, headers, and status check against the placeholder reference.
6

Return and status (if applicable)

If your PSP redirects after payment, the transaction id parameter matches what it adds to the URL. If you use a status check, the Success / Failed / None mapping is complete.
7

Webhook (if applicable)

Signature header configured if the PSP signs webhooks, correct payload paths, and every relevant event mapped to Success, Failed, or None.
8

Shared webhook secret

The generated or rotated secret is also configured in the PSP’s dashboard.
9

Full test checkout

You generated a real sandbox paylink, completed a payment end to end, and the resulting status is the expected one.
10

Production

Production credentials can create a real charge. Use the PSP’s test mode when it exists. If it doesn’t, run only an authorized minimum-amount transaction and define its void or refund before continuing.
Switch to Production, repeat the test checkout with production credentials, and re-verify webhook signature validation end to end.

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Activation in Brain Studio

A newly created gateway doesn’t appear immediately in the Payment node selector. Jelou verifies the configuration in the background and marks it active when ready. You can’t force that step from the UI.
Plan some time between finishing the wizard and being able to use the gateway inside a Brain flow.

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Next steps

Use in Brain Studio

Configure the Payment node once your gateway is active.

Create a custom gateway

Go back to the wizard if you need to adjust a step.