Budget overspend and attribution errors
Financial Before 16 After 6Spend runs ahead of plan on channels that appear to perform, because conversions are credited to the wrong source, tracking tags fail or reporting windows are mixed. Budget is then moved on the basis of misleading results.
Who or what is affected: Marketing team, finance lead and senior leaders making budget decisions
Causes
Multiple platforms credit the same sale, tags are added late and budgets are judged on last click results alone.
Consequences
Wasted spend, poor channel decisions, missed revenue targets and a loss of trust in the marketing numbers.
Existing controls
- Monthly spend is reviewed against the approved budget by the finance partner.
- Conversion tags are tested by hand before each major campaign launch.
Control gaps
Attribution models are not documented, and tag checks are not repeated after site changes.
Additional controls
- Prevent: Set hard daily spend caps and written approval limits for any budget change above a set value.
- Detect: Reconcile platform reported conversions against order records each week and log any gap above an agreed tolerance.