A Google Ads campaign should be judged by the business action it produces, not by clicks alone. For a service business, that usually means separating a form submission or call from a qualified enquiry and, eventually, a booked job. If those stages are mixed together, bidding and budget decisions are made on weak evidence.
Define the lead stages first
Write down what counts as a new enquiry, a qualified lead and a sale. A qualified lead might be in your service area, need a service you offer and have a workable timeline. Agree who marks that status in the CRM or lead sheet. A newsletter signup, a spam form and a project enquiry should not all be reported as equal leads.
Measure the first action reliably
Create a conversion action for a successful form submission and separate actions for useful calls or bookings. Fire the event only after success is confirmed, not when someone merely opens or clicks a form. Test with a real submission and check that duplicate page loads do not produce duplicate conversions. Google's conversion-action guide defines a conversion as a business action you choose; its web-conversion setup guide explains implementation options.
Keep context with the enquiry
Where your consent setup and systems allow it, keep the campaign and landing-page context with each lead. The minimum useful record is submission time, page, requested service, contact details and lead status. Route it to a person who can reply. If an integration fails, there should be a fallback inbox and an alert. A perfectly tracked lead that no one answers still has no commercial value.
Feed back lead quality
Once the team can mark which enquiries became qualified conversations or sales, compare campaigns against those later stages. Google documents enhanced conversions for leads as an option when website form information can be matched with later offline outcomes. It needs deliberate setup, permission and testing; it is not a switch to enable without checking the data flow.
Review a small scorecard each month
Report spend, valid enquiries, qualified enquiries, booked work and the cost at each stage. Add a note on what changed in targeting, landing pages or follow-up. If the sales cycle is long, show the cohort and time lag rather than pretending this month's spend created every sale reported this month.
Start with one correctly measured form and a lead-status process, then expand. See how Siren Web Studio approaches lead generation and CRM lead routing.