Find Chargebee customers that are missing from Dynamics GP

**Objective:** Find Chargebee customers created since `{created-since}` (default: the last 90 days) that have no customer in Dynamics GP company `{gp-company}`, so they can be set up before invoices need posting.

**Step 1: Chargebee customers**

Call `chargebee-get-customer` (chargebee server) with `created-at.from` set to the date and `max-records` of 100. Keep id, company, first-name, last-name, email and phone.

**Step 2: Look each one up in GP**

For each customer call `dynamics-gp-get-rm-customer` (dynamics-gp server), first with `customer-id` equal to the Chargebee `id`, then with `customer-name.contains` set to the Chargebee `company` (or last name when company is empty). Treat a GP result whose `main-email-address` equals the Chargebee email as a certain match.

**Step 3: Report**

Three lists: customers with no GP record (include id, name, email), customers with a probable match that needs a person to confirm, and the count of exact matches. Do not list the exact matches individually.

**Rules & Guidelines:**

* `chargebee-get-customer` is on the chargebee server; `dynamics-gp-get-rm-customer` is on the dynamics-gp server.
* Read only. Do not call `dynamics-gp-rm-customer-add` or any other write tool; only report the gap.

**Validation:**

* If Chargebee returns no new customers, say so and stop.
* If there are more than 100 customers, say the list was truncated.
* Never treat two different customers as a match on name alone when their emails differ.