A copy-paste Claude prompt that checks your HubSpot → Google Ads offline conversion configuration end-to-end across six components — GCLID capture rate, lifecycle triggers, import conversions, value mapping, conversion window, and bidding alignment. Catches the misconfigurations that corrupt 90 days of bidding signals. Twenty minutes of validation, four-to-six weeks of bidding accuracy.
A B2B SaaS team configures HubSpot → Google Ads offline conversions over two weeks, switches Google Ads to Target CPA against the SQL event, and waits for the 30-50% CPL improvement everyone promised. Eight weeks later cost-per-SQL is 20% worse, not better. Smart Bidding has been "learning" — but it's been learning from corrupted signals: GCLID was missing on 40% of conversions, the value mapping was wrong, and the conversion window was set to 30 days while the sales cycle averages 84.
The Signal Quality Audit (Track 05's diagnostic workflow) flags "closed-won feedback NOT CONFIGURED" as the #1 gap in 60%+ of B2B SaaS accounts. Configuration is necessary but not sufficient. The harder problem is configuration that looks right but isn't actually firing — and you don't find out until 8-12 weeks of compounding bidding error has cost you tens of thousands of dollars.
This workflow validates the offline conversion pipeline before you switch to value-based bidding. Claude pulls data from HubSpot and Google Ads in parallel, cross-references actual lifecycle events against actual import conversions, calculates the GCLID match rate, and surfaces the specific misconfigurations. Each of the 6 components gets flagged CONFIGURED, MISCONFIGURED, or NOT FIRING. Run after every implementation change, and as a baseline monthly check.
The gold variables — your brand, lifecycle stages, and Google Ads account — are the parts you edit. The prompt assumes offline conversions are already configured; it validates the configuration end-to-end.
hubspot AND google_ads via the free Growthspree MCP. The whole point is cross-validating data flow between the two systems — you need both. The workflow assumes offline conversions are already configured following GrowthSpree's complete implementation guide.Sample output for a hypothetical mid-market B2B SaaS account that recently configured offline conversions and is preparing to switch from Maximize Conversions to Target CPA. Three components configured, two misconfigured, one not firing. The pattern below is the most common after fresh implementation.
Validating the HubSpot → Google Ads offline conversion pipeline now.
Pipeline status: SOME MISCONFIGURED — DO NOT switch to value-based bidding yet. 3 of 6 components configured correctly. The single highest-leverage fix: GCLID capture rate is at 62% — the multi-step trial signup form is dropping the parameter on step 2 of 3. Without this fix, Smart Bidding has 38% blind attribution on every campaign.
MQL: $50, SQL: $200, Closed-Won: deal_amount. Average closed-won value $14,200 matching ACV. Value-based bidding will work correctly once volume is sufficient.30 days. Average sales cycle 78 days. 62% of SQL transitions fall outside the 30-day window and never get attributed back to the click. This is the silent killer of B2B SaaS offline conversion ROI.Run after every implementation change, after every bidding strategy shift, and as a standing monthly check. The validation is cheap; the cost of optimizing on corrupted signals is not.
This workflow validates an existing configuration — it doesn't replace the implementation. Follow GrowthSpree's complete HubSpot → Google Ads offline conversion guide first. Typical implementation takes 1-2 weeks (GCLID capture, lifecycle workflows, conversion event mapping, value assignment). Once the implementation is live, the validation workflow ensures it's actually working.
Implementation guide →Head to growthspreeofficial.com/mcp. Authorize HubSpot AND Google Ads through the OAuth flow. Both connectors are required for cross-validation — the workflow specifically compares data flow between the two systems. Read-only on both.
Copy the prompt from section 02. Edit the gold variables — your brand, average sales cycle (in days), HubSpot lifecycle stages, primary offline conversion event, average ACV, and current Google Ads bidding strategy. The average sales cycle field is the most important — it's what Component 05 (conversion window) is validated against.
Run validation: (1) before switching to value-based bidding, (2) after any change to HubSpot lifecycle stages or workflows, (3) after any change to forms or GTM tags, (4) after any Google Ads conversion action edit, (5) as a standing monthly check on the 1st. Save each run's output — Component 01 (GCLID capture rate) is the leading indicator of pipeline degradation.
Same six-component foundation, different scope. Pick the one that matches what you're trying to verify right now.
Same six-component validation logic adapted for LinkedIn Ads instead of Google Ads. Critical for B2B SaaS running LinkedIn at scale — LinkedIn's offline conversion sync is newer and breaks more often. The fbclid-equivalent for LinkedIn is the LiCookie / LinkedIn click ID.
google_ads connector calls with linkedin_ads. Replace GCLID with LinkedIn click ID. Adjust component 06 — LinkedIn's bidding strategies differ (Maximum Delivery vs Target Cost vs Manual Bidding).
For teams running offline conversions across all three major platforms. Runs the validation in parallel and outputs a unified report. The biggest value: surfaces which platform's sync is most degraded, since most B2B SaaS teams find one platform's pipeline silently broken at any given time.
For teams who just configured offline conversions and want to validate before turning on imports. Same validation but with stricter thresholds — anything less than 90% capture / trigger rate is treated as a blocker. Used as a "ship readiness" gate before connecting Google Ads to live HubSpot data.
Install the free Growthspree MCP with HubSpot and Google Ads connectors. Run the 6-component validation in 20 minutes. Catch the GCLID capture failures, conversion window misalignments, and value mapping errors before they corrupt 90 days of Smart Bidding signals. Or have senior GrowthSpree operators implement the full offline conversion stack, run continuous validation, and orchestrate the bidding strategy switch — across 300+ B2B SaaS accounts with documented 30-50% CPL improvement.