Split Shipment Planner

Purpose

Find WooCommerce processing orders that contain a mix of in-stock and out-of-stock/backordered items. For each such order, identify which items can ship now versus which must wait. Exports a split-shipment plan so fulfillment teams can send partial shipments immediately. Read-only — no orders are modified.

Prerequisites

• WooCommerce store with REST API enabled
• Consumer Key with Read scope
• Stock management must be enabled per product
• Minimum WooCommerce version: 3.5.0

Parameters

Authentication

WooCommerce uses OAuth 1.0a for HTTP and Basic Auth over HTTPS.

For HTTPS stores (recommended):

Authorization: Basic base64(consumer_key:consumer_secret)

For HTTP stores (development only): Use OAuth 1.0a — include oauth_consumer_key, oauth_nonce, oauth_signature, oauth_signature_method=HMAC-SHA1, oauth_timestamp, oauth_version=1.0

Never log or output consumer_key or consumer_secret values.

See docs/AUTHENTICATION.md for full setup instructions.

Safety

Read-only skill — no mutations are executed. Safe to run at any time.

Workflow Steps

Step 1 — Fetch processing orders

GET /wp-json/wc/v3/orders?status=<order_status>&per_page=100&page=1

Extract per order: id, number, line_items[].product_id, line_items[].variation_id, line_items[].quantity, line_items[].name

Step 2 — Fetch current stock for each product/variation in line items

For each unique product_id:

GET /wp-json/wc/v3/products/{id}

For variation IDs:

GET /wp-json/wc/v3/products/{id}/variations/{variation_id}

Extract: stock_quantity, stock_status, manage_stock

Step 3 — Classify each order

For each order: compare line item quantities against available stock.

• Items where stock_quantity >= line_item.quantity → can ship now
• Items where stock_quantity < line_item.quantity → backorder

Flag orders with at least one shippable and one non-shippable item as split-shipment candidates.

Step 4 — Export plan

API Endpoints Used

GET  /wp-json/wc/v3/orders                              — processing orders
GET  /wp-json/wc/v3/products/{id}                       — product stock
GET  /wp-json/wc/v3/products/{id}/variations            — variation stock

Pagination Strategy

WooCommerce REST API uses page/per_page pagination (not cursor-based).

Standard pattern:

page = 1
while True:
  response = GET /endpoint?per_page=100&page=page
  process(response)
  if len(response) < 100: break
  page += 1

Maximum per_page is 100 for most endpoints. The X-WP-Total and X-WP-TotalPages response headers report totals. Always read X-WP-TotalPages on the first request to estimate job size.

Session Tracking

Claude MUST emit the following output at each stage. This is mandatory.

STARTUP:

╔══════════════════════════════════════════╗
║  SKILL: woo-split-shipment-planner       ║
║  STORE: <store_url>                      ║
║  TIME:  <ISO-8601 UTC>                   ║
║  MODE:  READ-ONLY                        ║
╚══════════════════════════════════════════╝

PER-OPERATION (emit after each API call batch):

[N/TOTAL] <METHOD> <endpoint> → <result_count> records | params: <key>=<val>

COMPLETION (human format):

╔══════════════════════════════════════════╗
║  COMPLETE: woo-split-shipment-planner    ║
║  RECORDS PROCESSED: <n>                  ║
║  OUTPUT: <filename>                      ║
╚══════════════════════════════════════════╝

COMPLETION (json format):

{
  "skill": "woo-split-shipment-planner",
  "store": "<store_url>",
  "completed_at": "<ISO-8601>",
  "records_processed": <n>,
  "output_file": "<path>",
  "dry_run": false
}

Output Format

CSV filename: woo-split-shipment-planner_<YYYY-MM-DD>.csv Columns: order_id, order_number, customer_email, product_id, variation_id, product_name, ordered_qty, in_stock_qty, can_ship_now, backorder_qty

Error Handling

Best Practices

• Run daily during high-volume periods to proactively identify partial fulfillment opportunities.
• Share the export with your fulfillment team grouped by order number.
• Contact customers before splitting — some prefer to wait for a complete shipment.