Enter a Shopify order in Dynamics GP without rekeying

**Objective:** Post the Shopify order `{order-name}` to Dynamics GP as a Sales Order Processing document in batch `{batch-number}` using the SOP document ID `{document-id}` (default STDORD).

**Step 1: Read the Shopify order**

Call `shopify-get-order` (Shopify server) with `name` = `{order-name}`. If it matches nothing or more than one, say so and stop. Stop if `cancelled-at` is set. Call `shopify-get-order-line` (Shopify server) with its `order-id` for `sku`, `quantity`, `price` and `total-discount`, and `shopify-get-order-shipping-line` (Shopify server) for the shipping charge.

**Step 2: Check it is not already in GP**

Call `dynamics-gp-get-rm-sales-trx` (Dynamics GP server) with `customer-po-number` = `{order-name}`, passing `company` = `{gp-company}` when it is given. If a document comes back, report its `sop-number` and stop.

**Step 3: Resolve the GP customer and items**

Call `shopify-get-company-contact` (Shopify server) with `customer-email` = the order `email`. If it returns a contact, call `shopify-get-company` (Shopify server) with its `company-id` and use the company's `external-id` as the GP customer ID. Otherwise look for a GP customer with `dynamics-gp-get-rm-customer` (Dynamics GP server) by `customer-name.contains`, and check that its `main-email-address` equals the order `email`. If no single customer is found, list the candidates and stop; do not create a customer from this prompt.

For each line, confirm the `sku` exists as a GP `item-number` with `dynamics-gp-get-iv-item` (Dynamics GP server). If any SKU is missing or empty, list them and stop.

**Step 4: Confirm**

Show the planned document: customer, date, PO number = `{order-name}`, each line (item, quantity, unit price after discount), freight, tax, and total. Ask the user for the SOP number to use (or confirm the one they gave). Wait for an explicit yes.

**Step 5: Write**

Call `dynamics-gp-rm-sales-trx-add` (Dynamics GP server) once, with `sop-type` = order, `sop-number`, `document-id` = `{document-id}`, `batch-number` = `{batch-number}`, `customer-id`, `document-date` = the order date, `customer-po-number` = `{order-name}`, `freight-amount` and `tax-amount`. Then call `dynamics-gp-rm-sales-line-item-add` (Dynamics GP server) once per order line with `sop-number`, `sop-type`, `customer-number`, `item-number`, `quantity` and `unit-price`.

**Step 6: Verify**

Re-read with `dynamics-gp-get-rm-sales-trx` and `dynamics-gp-get-rm-sales-line-item` (Dynamics GP server) and compare the GP total with the Shopify `total-price`. Report any difference.

**Rules & Guidelines:**

* Writes happen only on Dynamics GP, only after confirmation: `dynamics-gp-rm-sales-trx-add` once and `dynamics-gp-rm-sales-line-item-add` once per line.
* Do NOT call `dynamics-gp-rm-customer-add`, `dynamics-gp-iv-item-add`, `dynamics-gp-rm-sales-trx-update` or any Shopify write tool such as `shopify-update-order`.

**Validation:**

* If a line add fails, stop, report which lines were written and which were not, and give the `sop-number` so the user can finish or delete it in GP.
* Discounts are applied into the unit price; say so in the confirmation if the order has any.