NMI Collect.js for PrestaShop guide to purchase install and test before launch

Introduction

Table of Contents

Introduction
1. Pre-purchase verification
2. Choose license at purchase
3. Download, install, enable
4. Configure sandbox
5. Sandbox test matrix
6. Theme and performance checks
7. Go-live cutover
8. After purchase: renewals and hub links
Red flags before buying
FAQ
Related reading

PrestaShop payment modules look interchangeable in marketplace screenshots—they are not. Collect.js integrations fail in subtle ways: wrong shop context, missing SSL, theme CSP blocking scripts, or currency mismatches between PrestaShop and NMI.

This guide supports buyers ready to checkout on the PatSaTECH product page. Read why buy NMI Collect.js for PrestaShop first if you are still comparing processors or modules.

1. Pre-purchase verification

Item	Confirm
Processor	Active Network Merchants Inc. relationship
Collect.js	Enabled on MID for tokenized checkout
PrestaShop version	Matches module requirements on product page
HTTPS	Valid certificate on checkout domain
License scope	Single vs 2–5 vs unlimited sites
Support term	1- or 5-year updates per checkout options

Product page: Network Merchants Inc. (Collect.js) for PrestaShop

2. Choose license at purchase

From the listing:

From $79.00 / year
Single Site, 2–5 Sites, or Unlimited license
Support and updates for 1 or 5 years
Satisfaction and support guarantees as described on product page

Agencies: invoice license cost separately from install labor so renewals remain visible to the merchant.

3. Download, install, enable

Complete checkout on PatSaTECH; retain order confirmation.
Install module via PrestaShop Module Manager (upload ZIP or use documented method in package).
Enable module; clear Smarty/cache as required.
Assign payment method to correct shop(s) in multistore setups.
Verify module appears in Payment > Payment Methods (wording may vary by PS version).

Optional: purchase plugin installation support for PatSaTECH-led configuration on staging.

4. Configure sandbox

In module settings:

Sandbox mode on.
Enter NMI sandbox credentials (security key / username per your portal).
Match currency with shop default unless intentionally multi-currency.
Set customer-facing title and description.
Enable debug/logging during setup only.

Walk through checkout as a guest and logged-in customer—PrestaShop customer contexts differ.

5. Sandbox test matrix

Test	Pass criteria
Successful payment	Order status matches your fulfillment workflow
Declined card	Clear error; no paid status incorrectly set
AVS/CVV mismatch (if tested)	Document behavior for CS team
Refund from back office	Amount syncs with NMI portal
Mobile checkout	Collect.js fields render; no horizontal scroll traps
Multistore (if used)	Each shop uses intended credentials

Use how to test your payment gateway like a pro for additional scenarios.

6. Theme and performance checks

Before live:

Disable conflicting one-page checkout experiments temporarily to isolate payment.
Confirm Collect.js not deferred by performance modules until after DOM ready.
Test with ad blockers off and on—support scripts should fail gracefully.
Validate email confirmations fire on paid orders.

If issues persist, capture browser console errors before opening support tickets.

7. Go-live cutover

Announce maintenance if switching from another gateway mid-day.
Toggle live credentials; disable sandbox.
Process small live transaction; verify in NMI portal and PrestaShop order.
Disable verbose logging.
Monitor authorization failures for 48 hours.

Align finance on refund steps in PrestaShop vs NMI virtual terminal.

8. After purchase: renewals and hub links

Calendar license renewal before expiry—expired modules risk unpatched Collect.js behavior.
When PrestaShop core updates, re-run smoke tests even if release notes omit payments.
Link store ops docs to PrestaShop hub for future gateway additions.

Red flags before buying

No NMI sandbox access yet—get keys first.
Production shop on HTTP only.
Heavily customized headless front without scoping—consider custom integration.
Expecting marketplace payment methods (iDEAL, etc.) without confirming NMI support for each rail.

FAQ

Where do I buy?
Only from PatSaTECH product page or authorized flows linked there.

Can I migrate from another PrestaShop module?
Yes—plan parallel running, customer communication, and rollback; test refunds on old gateway before decommissioning.

Does PatSaTECH host my keys?
No—credentials live in your PrestaShop admin; restrict admin access accordingly.

Need Magento or AbanteCart too?
See NMI for Magento and NMI for AbanteCart.