Subtopic
Running an online store on WordPress.
WooCommerce
WooCommerce order numbers are database IDs, shared with posts, products, refunds and checkout drafts, so they jump. You cannot make the ID sequential, but you can change the number customers see — and there are three places where that change has to be honoured.
WooCommerce
WooCommerce coupons discount items; they cannot say "buy two, get the cheaper one free". The usual workaround discounts the most expensive item instead, and the fix is either a few lines of fee code or a coupon tool that understands buy X get Y.
WooCommerce
Google Shopping, Meta catalogs and TikTok all read the same thing: a product feed. WooCommerce does not generate one, so the real choices are which channels you need, how the feed stays in sync, and which product data you fill in first.
WooCommerce
Hiding a price and swapping the button for a form takes two filters. Turning a quote into an order the customer can pay for is the part WooCommerce only does by hand, and it decides whether the setup is worth building.
WooCommerce
WooCommerce has coupons, not gift cards. A coupon can imitate a gift card for one purchase, but a balance that survives partial use, an email to a recipient and refunds as store credit are what separate the two.
WooCommerce
The built-in product exporter writes a CSV the importer can read back, which makes moving a catalogue easier than most people expect. The traps are IDs that mean nothing on the new site, images that point at the old domain, and data the file never contained.
WooCommerce
WooCommerce has no order exporter, only an Analytics report you can download. That covers totals and statuses, not addresses or line items. Here is what each route gives you, and what breaks when the file has to go into another store.
WooCommerce
Three different documents that stores often treat as one: the packing slip that goes in the box, the shipping label that goes on it, and the pick list the warehouse works from. What WooCommerce provides for each, and what to check before printing any of them.
WooCommerce
WooCommerce sends order emails, not invoices. What the built-in Order details email actually is, where the core stops, and what to check before you trust a plugin with numbered PDF invoices and credit notes.
WooCommerce
The hook fires once per Place order click, before WooCommerce reads or validates the posted data. Any error notice you add stops the order. It does not run in the block checkout at all.
WooCommerce
The action fires in almost every order email, in both HTML and plain text, for the customer and the admin. Output that ignores those arguments ends up in the wrong email or prints raw tags in plain text.
WooCommerce
The hook fires inside the data store, before the order's line items are written, for every order that is created outside a draft status. Reloading the order by ID inside it returns an order with no items.