How to Measure Offline Conversions: KPIs and Reporting Guide

Setting up offline conversion tracking is only half the work. This guide covers what to read after the upload, and where to find it. Google does not publish a success-rate target or a match-rate target.

The Five Essential KPIs

1. Upload Success Rate

What it measures: What percentage of records are successfully uploaded and matched.

Where to find it: Google Ads → Goals → Conversions → Uploads → your upload → Details

Read the upload report and fix the rows that failed for a reason you can correct, such as a cut-off GCLID or a conversion time before the click. A click-not-found on a lead that never clicked a Google ad is expected when you upload every booked job. There is no published success-rate target.

2. Conversion Match Rate (Enhanced Conversions)

What it measures: What percentage of hashed PII uploads match to a known Google user.

Where to find it: Google Ads → Goals → Conversions → your action → Diagnostics → Enhanced conversions

Google does not publish a match rate for an email, a phone, or a GCLID. Send all three when you have them, then read the card. If the card is low, check the hash before you look for a missing identifier.

3. ROAS (Return on Ad Spend)

What it measures: How much revenue your ads generate per dollar spent.

Where to find it: Google Ads → Campaigns → add “Conv. value / cost” column

Calculation:

ROAS = Total Conversion Value / Total Ad Spend

Example, so you can see the arithmetic:

$150,000 in uploaded revenue / $30,000 ad spend = 5.0x ROAS

Those two dollar amounts are an example. Use your own spend and your own uploaded revenue.

4. Conversion Lag

What it measures: Time between ad click and offline conversion.

Where to find it: Google Ads → Reports → Predefined → Conversions → Time to conversion

Use the Conversion Lag Calculator to analyze your lag distribution.

Why it matters: If your average lag is 14 days, looking at the last 7 days of data will show incomplete results. Wait for the full lag period before evaluating campaign performance.

5. Upload Coverage

What it measures: What percentage of your actual offline conversions are being uploaded.

Calculation:

Coverage = Uploaded Conversions / Total Offline Conversions × 100%

Example, so you can see the arithmetic:

45 uploaded conversions / 50 actual booked jobs = 90% coverage

Those counts are an example. Divide your uploaded jobs by the jobs you actually booked.

10% gap could be: direct leads (no GCLID), data source connectivity issues, or filter rules excluding valid records.

Building a Measurement Dashboard

Weekly Metrics

Metric	Source	Target
Failed rows, and why	TUOCA Activity Logs and the upload report	Fix the ones you can correct
Records uploaded	TUOCA Activity Logs	Compare with the jobs you booked
Diagnostics card	Google Ads Diagnostics	Read it. There is no published target.
ROAS	Google Ads Campaigns	Improving over time
Error count by type	TUOCA Activity Logs	Decreasing over time

Monthly Metrics

Metric	Source	Target
ROAS trend	Google Ads Campaigns	Improving
CPA (offline conversions)	Google Ads Campaigns	Decreasing
Revenue per conversion	CRM + Google Ads	Consistent or increasing
Conversion lag trend	Conversion Lag Calculator	Stable
Upload coverage	CRM vs. Google Ads	85%+

Reporting Best Practices

Use Click Dates, Not Upload Dates

Offline conversions are attributed to the click date, not the upload date. When building reports:

• Set date ranges based on when clicks occurred
• Account for conversion lag — recent click dates will show incomplete data
• See Google Ads Click Date vs. Conversion Date

Wait for Lag to Complete

If your average conversion lag is 14 days, don’t evaluate a campaign’s ROAS until at least 14 days have passed since the last click in the date range.

Compare Online vs. Offline Metrics

Metric	Online (Forms/Calls)	Offline (Booked Jobs)	Insight
CPA	$85	$235	Offline CPA includes quality filtering
Conversion rate	5.2%	1.8%	Not all leads become customers
ROAS	Unknown	5.2x	Offline reveals true ROI
Conv. value	$0	$3,500 avg	Only offline has revenue data

How TUOCA Helps You Measure

TUOCA’s Dashboard provides:

1. Upload health — Success rate, error rate, records processed per relay
2. Error breakdown — Categorized errors (CLICK_NOT_FOUND, EXPIRED, DUPLICATE, etc.)
3. Trend visualization — Upload volume and success rate over time
4. Per-relay metrics — Performance breakdown by relay pipeline
5. Activity Logs — Record-level detail for every upload

Next Steps

1. ✅ Set up weekly KPI tracking
2. ✅ Calculate your conversion lag
3. ✅ Check your Enhanced Conversions match rate
4. ✅ Compare online vs. offline metrics
5. ✅ Use the Conversion Value Calculator to estimate VBB impact