When cart contents change — product added, quantity updated, carrier or address switched — the module re-evaluates active policies and syncs the fee line automatically. No manual refresh. No theme JavaScript hacks.

If no policy matches anymore, the fee product is removed cleanly. If the amount changes, the line updates through PrestaShop's native cart mechanics with price override hooks.

Each cart stores its own customer-facing label in conorderfee_cart — not on the shared hidden fee product. Cart #1042 can show "COD handling fee" while Cart #1043 shows "Gift wrapping surcharge" at the same time, with no label leaking between sessions.

Presentation hooks inject the correct text per cart through PrestaShop's native product listing and cart product presenters. The fee product stays generic in the catalogue; concurrent checkouts and AJAX cart updates remain safe at scale.

A policy is a named bundle of conditions plus one or more fee rules. Create as many as you need — COD surcharges, small-order fees, packaging for bulky goods, payment-method handling.

Each fee rule defines amount type (fixed or percent), calculation base, min/max caps, tax rules group, priority, optional date window and its own sub-conditions. Write a multilingual cart line label customers actually see.

Policies run in position order. Enable Stop on first match when the first matching policy should decide everything.

Products total — sum of merchandise lines only, fee product excluded from the base automatically.

Cart total — full basket value including shipping, still excluding the fee line itself to avoid circular math.

Shipping cost and cart weight bases let you charge packaging or handling proportional to delivery size — not just order value.

When multiple fee rules inside one policy match, the merge strategy decides the outcome:

• Stack all — sum every matching fee rule.
• First fee wins — only the first matching rule applies.
• Priority cascade — lowest priority number wins.
• Highest fee — keep only the largest calculated amount.
• Unique fee codes — one fee per code, highest priority wins per code.

Set a default merge strategy globally in Settings, then override per policy when needed.

The Simulator tab lets you test rules against real carts from your shop. Search baskets, optionally attach a customer, then run the evaluation.

Results show matched policies, fee lines with amounts and labels, and the total surcharge — no test order required.

Use the simulator after every policy change to confirm fees behave exactly as intended before customers see them.

The Dashboard tab is your fee revenue control room. KPI cards summarise applied fees, active policies and evaluation volume over a selectable period.

Chart.js trend charts break down fee activity daily, weekly or monthly. Recent audit entries appear at the bottom for quick access to the latest decisions.

Every significant event is recorded: fee applied or cleared, policy create/update/delete, imports, exports, duplicates, settings changes and simulation runs.

The dedicated Audit log admin menu gives you filters by date and event type. Click preview on any row to see the full detail payload.

Export the log to CSV when compliance or internal review requires a complete history.

Download any policy as portable JSON from the policy editor or policies list. Upload JSON to create a new policy on the same shop or a staging environment.

The duplicate action copies the full policy — conditions, fee rules, merge strategy and multilingual labels — under a new name. Ideal for seasonal variants or safe testing.