Broken affiliate tracking rarely throws an error. Your store keeps taking orders normally while commissions quietly drop, and affiliates who stop getting credited usually don’t complain, they just stop promoting you. This checklist is the routine that catches a break before it costs you weeks of missed commissions.
Test tracking after every relevant update, not just once a year
WordPress core, WooCommerce, your theme, and your affiliate plugin all get updated independently, and any one of them can change something that affects tracking. The safest habit is simple: after updating any of those four, click your own affiliate link and complete a real test purchase. Confirm the sale shows up correctly in your affiliate reporting with the right amount and the right affiliate credited.
This takes five minutes and it’s the single highest-value habit on this list, because it catches a break immediately instead of a month later when you’re trying to figure out why commissions have been quietly low.
Watch conversion rate, not just clicks
A monthly test purchase catches a break you already have. Watching your click-to-conversion ratio catches one starting. If affiliate clicks stay flat but confirmed sales or commissions drop without a matching drop in your overall store traffic, that’s the pattern to investigate immediately rather than write off as a slow week. Real slowdowns usually show up across your whole store, not just your affiliate numbers specifically. A gap between the two is a tracking problem until you’ve confirmed otherwise.
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Watch for outdated integration code specifically
If your tracking relies on custom code rather than a maintained plugin, this is worth understanding: WooCommerce has changed its own internal order data structure before. Older code often read order details directly off the order object’s properties; current WooCommerce expects that same data through dedicated getter methods instead. Code written the old way doesn’t throw an error when it stops matching, it just quietly stops reading the field it was written for. A plugin actively maintained by its developer tracks changes like this for you. Custom snippets copied from an old tutorial don’t update themselves, and nobody tells you when they’ve quietly gone stale.
If you’re not sure whether your setup uses current WooCommerce methods or older ones, that’s worth checking directly with whoever set up your tracking, or with your plugin’s support team, rather than assuming it’s fine because nothing’s thrown a visible error.
Check whether caching is serving stale tracking scripts
Caching plugins speed up your site by serving a saved copy of a page instead of generating it fresh, which is a problem for any page that needs to be different for every visitor, like a checkout confirmation carrying a tracking script. Not every plugin handles this the same way, and that difference matters more than most store owners realize. WP Rocket, for example, detects WooCommerce automatically and excludes cart, checkout, and account pages out of the box (source ). W3 Total Cache doesn’t auto-detect WooCommerce at all, so those same pages stay cacheable until you manually exclude them.
Don’t assume your caching plugin is handling this correctly just because it’s popular. Check its WooCommerce-specific documentation directly, confirm checkout, cart, and account pages are explicitly excluded, and recheck that setting after any caching plugin update, since some updates reset custom exclusion rules back to their defaults.
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Confirm your cookie consent tool isn’t blocking tracking by default
If your site runs a cookie consent banner for GDPR or similar regulations, check how it categorizes your affiliate tracking script. Many consent tools block anything tagged as “marketing” or “analytics” until a visitor actively opts in, and if your tracking script gets bucketed that way by default, you lose attribution for every visitor who doesn’t click accept, which in some regions is a meaningful share of traffic. This isn’t a reason to skip consent compliance. It’s a reason to check the specific category your tracking script landed in rather than assume the default setting was the right one.
Keep backups that actually cover affiliate data
Most WordPress backup routines cover posts, pages, and media by default. Affiliate and commission data doesn’t always live in the same place, especially if your affiliate software stores data in its own tables or on its own servers. Before you need a backup, confirm you actually have one that includes affiliate accounts, commission history, and payout records, not just your site’s content. Regular, tested backups are the difference between a bad afternoon and a genuinely bad month if something does go wrong.
Use a staging site for anything bigger than a minor update
Major WordPress, WooCommerce, or theme version updates deserve a test run on a staging copy of your site before they touch your live store. This is standard practice for e-commerce generally, but it matters even more when affiliate commissions are on the line, since a staging environment lets you catch a tracking break in a place where it costs you nothing, rather than in production where every hour of downtime is money an affiliate didn’t get credited for.
Review your fraud detection settings periodically
Fraud patterns shift over time, and settings that made sense when you had a handful of affiliates might not fit a program that’s grown. Revisit your plugin’s fraud detection rules every few months, not just once at setup, especially if you’ve noticed unusual patterns like a spike in signups from a single source or unusually high click-to-conversion ratios that don’t match your normal traffic.
Keep an eye on your affiliate plugin’s own changelog
Most well-maintained affiliate plugins publish release notes when they fix bugs or change how tracking works. Skimming these when you update is worth the two minutes it takes, since it tells you upfront whether a given update changes anything relevant to your setup, instead of finding out the hard way after something behaves differently.
Make this someone’s actual job, even if it’s a small one
The programs that avoid tracking breakage long-term aren’t the ones with the fanciest plugin. They’re the ones where someone specific is responsible for running through this checklist on a schedule, even if it’s just a recurring calendar reminder once a month. Ownership without a system tends to slip. A short, boring checklist that actually gets followed protects far more revenue than the best plugin left unchecked for six months.
