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PrestaShop Module — Complete Setup Guide

PrestaShop Module — Complete Setup Guide

The Partially module for PrestaShop lets you offer payment plans as a payment method in your store's checkout.

Before You Start

You need two things in place in Partially before configuring the module:

  1. A connected Stripe account — Go to Settings → Integrations in Partially and connect Stripe if you haven't already.
  2. An offer — An offer defines your payment plan terms. Go to Offers → New Offer to create one.

Step 1 — Download the Module

Download the latest version of the Partially PrestaShop module (.zip file) from: https://s3.amazonaws.com/partially.assets/integrations/prestashop/partially.zip

Step 2 — Install the Module

  1. Log in to your PrestaShop admin.
  2. Click Modules in the top menu, then Module Manager.
  3. Click Upload a module.
  4. Select the partially.zip file you just downloaded.
  5. PrestaShop will install the module automatically.

Step 3 — Configure the Module

After installation, the Partially module will appear in your module list.

  1. Click Configure next to Partially.
  2. Enter your Partially API key — found in your Partially merchant account under Settings → General.
  3. Once your API key is saved, your available offers will be shown. Select the offer you want to use at checkout.
    • If no offers appear, you need to create one first. Go to Offers → New Offer in Partially.
  4. Set the order status for opened payment plans and fully paid payment plans to match your store's workflow.
  5. Save your settings.

Partially will now appear as a payment method option in your store's checkout.

Step 4 — Test the Checkout

Place a test order on your store to confirm Partially appears as a payment option and the payment plan flow completes correctly.

Cart-based rules and multiple offers

To dynamically disable Partially or change the offer used based on the customer's cart contents (e.g. minimum order amount, specific products or categories), use Smart Customization — Partial.ly's rules engine, configured in the UI with no code. See Smart Customization.

Advanced Scripting is deprecated. The older Settings → Advanced Scripting feature is no longer recommended — use Smart Customization instead. Any existing Advanced Scripting is written in Lua (not JavaScript); leave legacy scripts in Lua and don't write new ones.

Troubleshooting

Partially not appearing at checkout — Confirm the module is enabled and that your API key and offer are configured correctly. Check that the offer is active in your Partially account.

No offers shown after entering API key — You may not have any active offers yet. Go to Offers → New Offer in Partially to create one, then return to the module configuration.

API key not working — Find your API key under Settings → General in your Partially merchant account. Paste it in full with no extra spaces.

Questions? Email support@partial.ly.