WooCommerce platform help — the open-source WordPress commerce plugin (woocommerce.com): products, orders, customers, coupons, and the REST API v3 (/wp-json/wc/v3, HTTP Basic consumer key/secret over HTTPS or OAuth 1.0a), signed webhooks (X-WC-Webhook-Signature, HMAC-SHA256 base64), the headless Store API, and batch endpoints. Use when setting up or debugging WooCommerce REST API access, fixing 401 Unauthorized or a stripped Authorization header, wiring orders or customers into a CRM or warehouse, catching an order.created webhook that is not firing, building a headless storefront on the Store API, paginating a large product catalog, or budgeting a store cost beyond the free plugin. Do NOT use for checkout-conversion strategy across cart platforms (use /sales-checkout) or picking a hosted Merchant of Record for global tax (use /sales-merchant-of-record).
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name
sales-woocommerce
description
WooCommerce platform help — the open-source WordPress commerce plugin (woocommerce.com): products, orders, customers, coupons, and the REST API v3 (/wp-json/wc/v3, HTTP Basic consumer key/secret over HTTPS or OAuth 1.0a), signed webhooks (X-WC-Webhook-Signature, HMAC-SHA256 base64), the headless Store API, and batch endpoints. Use when setting up or debugging WooCommerce REST API access, fixing 401 Unauthorized or a stripped Authorization header, wiring orders or customers into a CRM or warehouse, catching an order.created webhook that is not firing, building a headless storefront on the Store API, paginating a large product catalog, or budgeting a store cost beyond the free plugin. Do NOT use for checkout-conversion strategy across cart platforms (use /sales-checkout) or picking a hosted Merchant of Record for global tax (use /sales-merchant-of-record).
WooCommerce (woocommerce.com) is the open-source, self-hosted commerce plugin for WordPress —
the most-installed cart on the web. You own the code and the database; there's no platform
transaction fee. It sells physical, digital, variable, and subscription products through Products,
Orders, Customers, and Coupons, and exposes almost everything through a REST API v3
(/wp-json/wc/v3), signed webhooks, and a separate headless Store API. Because it runs on
your WordPress host, most integration pain is server/auth config, not a vendor limit.
Step 1 — Gather context
If references/learnings.md exists, read it first for accumulated platform knowledge.
Ask only what you can't infer from the user's prompt:
What are you trying to do?
A) Read/write store data (products, orders, customers) from a script, CRM, or warehouse via the REST API
B) Set up or debug a webhook (order/product/customer events)
C) Build a headless / custom storefront (Store API cart & checkout)
D) Bulk-import or export a large catalog (pagination, batch endpoints)
E) Configure the store itself (products, tax, shipping, gateways) in wp-admin
F) Understand real cost / plan choices (self-hosted vs Woo Express hosted)
Is the site on HTTPS with pretty permalinks? Both are effectively required for the REST API
— 401s and 404s usually trace back to one of them or to a host that strips the Authorization header.
Skip-ahead rule: if the user's prompt already has enough context, go straight to Step 2.
Step 2 — Route or answer directly
If the user's question is about…
Route to
Which cart/checkout platform to pick, or checkout-conversion strategy (bump/upsell design, cart-abandonment recovery, reducing checkout fields)
Choosing a hosted Merchant of Record so someone else owns global VAT/GST (WooCommerce is NOT one)
/sales-merchant-of-record {question}
Comparing WooCommerce against Shopify / BigCommerce / a headless stack for a build decision
/sales-checkout {question}
Migrating an existing store's data into or out of WooCommerce
/sales-store-migration {question}
When routing, give the exact command: "This is a {domain} question — run: /sales-checkout {original question}"
Otherwise, answer WooCommerce-specific questions directly using Step 3.
Step 3 — WooCommerce platform reference
Read references/platform-guide.md for the full reference — capabilities & automation surface
(what's REST-, Store-API-, webhook-accessible vs wp-admin-only), real cost breakdown and plan gates,
data model (string money, integer IDs, meta_data arrays), and quick-start recipes (authenticated
REST call, order webhook listener with signature verification, cursor-safe catalog export).
For raw endpoint detail, auth flows, pagination, batch limits, and verbatim webhook headers, read
references/woocommerce-api-reference.md.
Answer using only the relevant section — don't dump the full reference.
Step 4 — Actionable guidance
Sync to a CRM/warehouse with a webhook plus a reconciliation backstop. To push store data
out reliably, register an order.created (and order.updated) webhook to a tokenized HTTPS
endpoint as the low-latency trigger, and always add a periodic polling backup — a nightly
per_page=100 paginated GET /wc/v3/orders?after=<iso8601> reconciliation pull — because a
single delivery can be blocked or dropped. Dedupe on the resource id. Never rely on the webhook alone.
Diagnose a 401 as config, not credentials. WooCommerce returns 401 when the site isn't on
HTTPS or when the host strips the Authorization header (common on Apache/CGI and some
managed hosts). Tell the user to (a) confirm HTTPS + a valid SSL cert, (b) test with credentials
as query-string params (?consumer_key=...&consumer_secret=...) or set queryStringAuth, and
(c) if query-string works but the header doesn't, add the RewriteRule that passes
Authorization through (or use OAuth 1.0a for plain HTTP). Confirm the key's permission is
read/write for the operation.
Treat a webhook that "won't fire" as a blocked REST endpoint. The #1 cause is a security
plugin or the "restrict REST API to authenticated users" setting rejecting the unauthenticated
delivery — WooCommerce then logs a failed delivery and auto-disables the webhook after 5
consecutive failures. Re-enable it, allowlist the delivery, and check
WooCommerce → Status → Logs / the webhook's delivery log. Also verify the topic is active, not
paused, and that the endpoint returns a fast 2xx.
Verify every webhook by HMAC, then re-fetch by ID. Compute
base64(HMAC-SHA256(raw_request_body, webhook_secret)) and compare to the
X-WC-Webhook-Signature header before trusting a payload; the secret defaults to the API
user's consumer secret if you didn't set one. Then re-fetch the object via GET /wc/v3/orders/{id}
before provisioning access or moving money, and dedupe on the order/resource ID.
Parse money as a string and IDs as integers. Amounts (total, price) come back as
decimal strings ("29.99") — don't divide by 100. Resource IDs are integers; dates are ISO8601.
Custom fields live in the meta_data array ([{ "key": "_pod", "value": "..." }]), not top-level.
Page and batch within the limits. Default per_page is 10, max 100; loop with page= and
read X-WP-Total / X-WP-TotalPages (or the Link header) to know when to stop. For bulk writes
use the /batch endpoint (create/update/delete arrays, ~100 items per call) instead of
one request per row. There's no vendor rate limit — but your host and DB are the ceiling, so throttle.
Reach for the Store API for headless carts, not the v3 API. Cart/checkout for a custom
storefront lives at /wp-json/wc/store/v1 and needs no consumer key — it uses a Nonce and
Cart-Token header per shopper. Use v3 for admin/back-office data, Store API for the buyer-facing flow.
Present cost as best-effort and total, not "free." The plugin is free (GPL), but a real store
pays for hosting, extensions (each roughly per-year, per-extension), a theme, and payment
processing (~2.9%+30¢). Verify current numbers at woocommerce.com/pricing and note Woo Express is
the hosted option if they don't want to self-manage.
If you discover a gotcha or tip not in references/learnings.md, append it there with today's date.
Gotchas
Best-effort from research (2026-07) — review these, especially plan pricing and the auth/host
behaviors, which vary by server and may have changed.
401 is usually the server, not the key — no HTTPS, or the host strips the Authorization
header. Try query-string auth; add the Authorization rewrite rule; use OAuth 1.0a for HTTP.
Webhooks auto-disable after 5 failed deliveries — a security plugin blocking unauthenticated
REST access (or a slow/500 endpoint) silently kills them. Re-enable and allowlist the delivery IP/URL.
Webhook secret defaults to the consumer secret if you didn't set one — verify the signature
with whatever secret is actually stored on the webhook, base64 HMAC-SHA256 of the raw body.
Money is a decimal string ("29.99"), IDs are integers, dates ISO8601. Custom fields are in meta_data.
per_page max is 100 and total counts are in headers, not the body — large catalogs must paginate.
Pretty permalinks required — /wp-json/ 404s when WordPress is on "plain" permalinks.
It's not a Merchant of Record — you (the store owner) own sales tax/VAT. WooCommerce Tax /
extensions can calculate, but you remit.
Version skew — WooCommerce and WordPress version bumps occasionally change field shapes;
pin to wc/v3 and re-verify field names against the live System Status before a big migration.
Related skills
/sales-checkout — Checkout-conversion strategy and cart-platform selection (WooCommerce vs Shopify vs BigCommerce; bumps, upsells, cart-abandonment recovery)
/sales-merchant-of-record — Choosing a Merchant of Record for global tax (WooCommerce is not one)
/sales-store-migration — Migrating a store's catalog, customers, and orders between platforms
/sales-shopify — Shopify platform help (the hosted SaaS alternative)
/sales-do — Not sure which skill to use? The router matches any sales objective to the right skill. Install: npx skills add sales-skills/sales --skill sales-do -a claude-code
Examples
Example 1: Sync new orders into a CRM/warehouse (developer/automation)
User says: "How do I push every new WooCommerce order into my CRM automatically without missing any?"
Skill does: Sets up an order.created (and order.updated) webhook to a tokenized HTTPS
endpoint, verifies each delivery by recomputing base64(HMAC-SHA256(body, secret)) against
X-WC-Webhook-Signature, then re-fetches GET /wp-json/wc/v3/orders/{id} (Basic auth, consumer
key/secret) before writing — parsing total as a string and deduping on order id. Adds a nightly
per_page=100 paginated GET /orders?after=... reconciliation pull as a backstop in case a
delivery was blocked, and flags that a security plugin can auto-disable the webhook after 5 failures.
Result: CRM stays in sync with verified data even if a webhook delivery is dropped or spoofed.
Example 2: The REST API returns 401 no matter what
User says: "I generated a key but every WooCommerce API call comes back 401 Unauthorized."
Skill does: Walks the config checklist — HTTPS with a valid cert, key permission is read/write,
then tests credentials as query-string params (?consumer_key=...&consumer_secret=...); if that
works but the header doesn't, identifies the host stripping the Authorization header and gives the
.htaccess rewrite (or switches to OAuth 1.0a for HTTP). Confirms pretty permalinks are on so
/wp-json/ resolves.
Result: Root cause is the server/host config, not the credentials — fixed without regenerating keys.
Example 3: Bulk-import a large catalog
User says: "I need to load 8,000 products into WooCommerce from a CSV — one-by-one is too slow and timing out."
Skill does: Points to the POST /wp-json/wc/v3/products/batch endpoint with a create array of
~100 products per call (not one request each), notes money must be sent as strings and custom fields
go in meta_data, and to read X-WP-Total/X-WP-TotalPages when verifying — throttling because the
ceiling is the user's own host/DB, not a vendor rate limit.
Result: Import runs in ~80 batched calls instead of 8,000, without hammering the server.
Troubleshooting
401 Unauthorized on every REST call
Symptom: All /wp-json/wc/v3 requests fail with 401 even with a freshly generated key.
Cause: Site not on HTTPS, or the web host strips the Authorization header before WordPress
sees it (common on Apache/CGI, some managed hosts), or the key lacks write permission.
Solution: Confirm HTTPS + valid SSL and read/write key permission. Test with query-string auth
(?consumer_key=...&consumer_secret=...); if that succeeds, add the rewrite rule that passes
Authorization through, or use OAuth 1.0a for plain HTTP. Never send keys as query params over plain HTTP.
Webhook stopped firing
Symptom: An order.created/product.updated webhook worked, then silently stopped.
Cause: A security plugin (or "restrict REST API to authenticated users") is returning 401 to the
unauthenticated delivery, or the endpoint returned a non-2xx/slow response — WooCommerce
auto-disables a webhook after 5 consecutive failed deliveries.
Solution: Re-enable the webhook (set status active), allowlist the delivery to the REST route,
make the endpoint return a fast 2xx, and inspect the per-webhook delivery log +
WooCommerce → Status → Logs. Add a polling reconciliation as a safety net.
/wp-json/ returns 404
Symptom: The REST base itself 404s before auth is even attempted.
Cause: WordPress is on "plain" permalinks, so the REST rewrite rules aren't registered (or a
caching/security layer is blocking /wp-json/).
Solution: Set Settings → Permalinks to a "pretty" structure (e.g. Post name) and re-save to
flush rewrite rules; confirm no server rule or plugin blocks /wp-json/.
