Outdated conversion data can seriously mess with your ad performance, and here’s why - it skews your cost-per-action (CPA) numbers and throws bidding algorithms off their game. Imagine your system relying on old data to decide bids; it might overspend on clicks that won’t convert or underspend where real opportunities exist. To avoid this, make sure your conversion tracking is real-time using tools like Google Tag Manager or Analytics. Double-check that your conversion actions in Google Ads match your current goals - sometimes, old settings can linger unnoticed. If you’re using offline conversion tracking, upload data regularly to keep things up to date. Also, try switching to a data-driven attribution model for a more accurate understanding of what’s driving results.