The ad is clear. The click is relevant. The customer lands on a page with a different offer and a form nobody checks until tomorrow. The advertising has handed over to a problem.
Performance belongs to the whole journey. The ad, page, checkout, sales response and fulfilment need to make compatible promises.
Walk through the experience yourself before launch. Use a phone. Follow the link. Ask a basic question. Check whether the advertised product is available and whether the next step is understandable.
For lead-generation businesses, agree how enquiries reach sales, who responds and how outcomes return to marketing. For D2C brands, bring stock, delivery, returns and product information into the planning conversation.
When results weaken, investigate where the journey changed rather than immediately rewriting the ad. The campaign may be attracting the right people while the next step lets them down.
A shared review beats separate teams defending separate dashboards. Ask what the customer experienced and who can improve it.