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ADS·Google Ads·critical

No Primary Conversion Action

Your Google Ads account has no enabled Primary conversion action. Not one. Every action is either disabled or marked Secondary, so Smart Bidding has zero signal to optimise against. Maximize Conversions, Target CPA, Target ROAS — they're all bidding blind right now. Fix this before you change anything else.

CL
By Christopher LandaverdeCreator of AdLint · ad-tech tracking specialistUpdated

Why It Matters

Smart Bidding optimises against Primary conversion actions. Only Primary. Secondary actions are recorded for reporting, but they don't feed the bidding algorithm. With no Primary at all, the algorithm has no target. Spend still goes out (budget and bid caps still work), clicks still come in, the account still looks active on the dashboard. Conversion-aware optimisation just isn't happening underneath. This usually happens one of two ways. Either the team ran a measurement migration — created new conversion actions, demoted the old ones to Secondary while testing, and never came back to promote the new actions to Primary. Or someone demoted the macro action to Secondary while cleaning up duplicates and the change never surfaced because the campaigns kept running on autopilot. The failure is invisible from any standard Google Ads report. Conversion volume reports show conversions (Secondary actions still count). Campaign performance reports show CPA and ROAS (computed from those same Secondary actions). Nothing flags "no Primary action." You have to look in Tools & Settings → Measurement → Conversion goals and notice the empty Primary column. Until this is fixed, every automated bidding decision is arbitrary. Fix it first, then come back to the rest of this audit.

How To Fix It

  1. In Tools & Settings → Measurement → Conversions, find the canonical macro business outcome for this account. Purchase for e-commerce. Lead or Submit Lead Form for B2B. Sign-up for SaaS.
  2. Mark that action Primary. If it is disabled, enable it first.
  3. Open Tools & Settings → Measurement → Conversion goals. Confirm the new Primary action appears under the appropriate default goal.
  4. Open each active campaign's goal settings. Confirm it inherits the account-default Primary goal (some campaigns override; check them individually).
  5. Allow 7-14 days for Smart Bidding to re-enter normal learning before judging performance against the new baseline.

Example

Configuration
All conversion actions: Secondary
Primary actions: 0
Fix: mark the canonical macro action (Purchase or Lead) as Primary.
For Your Client Report

This Google Ads account has no enabled Primary conversion action. Per Google's Smart Bidding documentation, value- and volume-based bidding strategies optimise exclusively against Primary actions; without one, automated bidding cannot learn from conversion signal and every bidding decision is arbitrary. Fix: identify the canonical macro business outcome (Purchase, Lead, or equivalent), mark it Primary, and confirm inheritance into active campaign goals. Address this finding before any other measurement work, since the rest depends on having signal to optimise against. Source: support.google.com/google-ads/answer/12727548.

Drop this paragraph into your client deliverable. Sources back to the canonical platform documentation linked below.

References

  1. [1]Google Ads. About conversion goals

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