Open payables in Intacct with every cutover bill accounted for

**Objective:** Confirm the open payables in Dynamics GP at `{cutover-date}` match the open bills in Intacct, for vendor `{vendor-id}` or for every vendor when it is empty.

**Step 1: Open GP payables at cutover**

Call `dynamics-gp-get-pm-payables-trx` with `document-date.to` = `{cutover-date}` (and `vendor-id` = `{vendor-id}` when given). Drop voided documents. `current-trx-amount` is what is still open today; keep documents where it is not zero. Treat document types that reduce what is owed (credit memos, returns, payments) as negative, using the codes the tool lists for `document-type`.

If GP was used after cutover, today's open amount understates the cutover amount. Call `dynamics-gp-get-pm-payables-apply` with `payment-date.from` = the day after `{cutover-date}` and add each `applied-amount` back to its `apply-to-document-number`.

**Step 2: Open Intacct bills**

Call `intacct-get-bill` with `total-due.min` = 0.01 (and `vendor-id` when given), and `intacct-get-ap-adjustment` for migrated credit memos with an open `total-due`.

**Step 3: Match**

Match vendors on `vendor-id`, exactly first, then ignoring case and leading zeros. For GP vendors still unmatched, look them up by name with `intacct-get-vendor` and label the result "matched by name".

Within a vendor, match GP `document-number` to Intacct `bill-number`, then to `reference-number`. Compare the open amount and the due date; a changed due date moves the document in the aging.

**Step 4: Report**

1. Vendor summary: vendor, GP open at cutover, Intacct open, difference. Put only vendors with a difference in the table and give the count of vendors that tie.
2. GP documents missing from Intacct: vendor, document number, type, date, open amount.
3. Intacct bills with no GP document.
4. Amount or due date mismatches.
5. Grand totals on both sides.

**Rules & Guidelines:**

* Tools prefixed dynamics-gp- are on the dynamics-gp MCP server. Tools prefixed intacct- are on the intacct MCP server. Both servers must be connected; if a tool from either is missing, say which server is not connected and stop.
* Pass `{gp-company}` as `company` on every dynamics-gp- call (empty means the default GP company). Use the default Intacct company; if the Intacct side holds several entities and it is not clear which one received this GP company, ask before starting.
* Set `max-records` high (5000) on every list read. If a read returns exactly that many rows, say the result may be truncated and narrow the filter (per account, per vendor, per customer or per item) instead of reporting totals from it.
* Read only. Intacct has no bill-creation tool here, so report missing bills for import; never try to create them. Do NOT call `dynamics-gp-pm-payables-trx-add`, `intacct-create-recurring-bill` or `intacct-update-vendor`.

**Validation:**

* If `{vendor-id}` is given and not found in GP, say so and stop. If it is in GP but not in Intacct, report the vendor as not migrated.
* Amounts within 0.01 tie. A document open in GP and fully paid in Intacct is a timing question for the user, not a missing bill.