Most marketing dashboards are built the wrong way round: someone connects a data source, sees what metrics are available, and adds charts for all of them. The result is comprehensive, impressive and unread.
Start with the questions
Write down the five to eight questions the dashboard exists to answer. For most businesses: are we getting more enquiries than last month, what did they cost, which channel produced them, which pages did they come from, and are we ahead or behind target. Every chart must answer one. Charts that answer none get cut, however interesting the data.
Connect the sources you need
GA4, Google Ads and Search Console connect natively. Meta and other platforms need a connector or a Sheets export, and a scheduled export is often more reliable than a paid connector for smaller accounts. Keep a Sheets tab for manual figures, such as closed revenue from your CRM, because that is usually the number leadership cares about most.
Build two layers
A summary page for whoever glances at it monthly: five or six numbers, each with a comparison to last period, plus one trend chart. Then detail pages behind it for whoever does the work. Trying to serve both audiences on one screen serves neither.
Handle definitions explicitly
Decide what counts as a conversion and use the same definition everywhere. Add a notes section documenting each metric, its source and its quirks. Dashboards lose trust the first time two numbers disagree and nobody can explain why, and that trust does not come back easily.
Design for legibility
Comparison periods on every scorecard, because a number without context is decoration. Consistent colours per channel. Date controls at the top. No pie charts with eleven segments. If a viewer needs an explanation to read it, redesign it.
Then automate delivery
Schedule an emailed PDF on your reporting cadence, so the dashboard reaches people rather than waiting to be visited. That single step does more for adoption than any amount of visual polish, and it is why dashboard builds usually end with a delivery schedule rather than a handover link.