See 2Checkout subscriptions next to Business Central balances

**Objective:** For the customer with email `{email}`, show what they subscribe to in 2Checkout next to what they owe in Business Central, looking back `{lookback-days}` days of ledger activity (default 90).

**Step 1: Subscriptions in 2Checkout**

Call `2checkout-get-subscription` with `end-user-email` set to `{email}`. Note `subscription-reference`, `product-name`, `status`, `expiration-date` and `billing-currency`. Call `2checkout-get-customer` with `email` set to `{email}` to get `customer-reference` and `credit-remaining`. If no subscription and no customer is found, say so and stop.

**Step 2: Account in Business Central**

Call `business-central-get-customer` with `email` set to `{email}`. If several match, list them and stop. Take `customer-number`, `balance`, `balance-due`, `credit-limit` and `blocked`. Then call `business-central-get-detailed-customer-ledger` with `customer-number` and `posting-date.from` set to today minus the look-back days. If there is no Business Central customer, report that and continue to Step 3 with 2Checkout data only.

**Step 3: Report**

Give three parts: the subscription list (reference, product, status, expiry); the Business Central position (balance, balance due, credit limit, blocked, count and total of ledger entries in the window); and a short risk note. Raise a flag when active subscriptions exist while Business Central shows `blocked` or a `balance-due` above zero, or when a subscription is expired but the customer was invoiced in the window.

**Rules & Guidelines:**

* Tools named the 2checkout prefix are on the 2checkout server and tools named the business-central prefix are on the business-central server. Both servers must be connected.
* This is a read-only job. Never call any 2checkout or business-central create, update, add, order or subscription action tool.
* Business Central tools take an optional company parameter; only use it if the user named a company.

**Validation:**

* If the currencies differ between `billing-currency` and `currency-code`, show both and do not add the amounts together.
* If the email matches in one system only, say which one and do not search by name.