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Para Meta Ads admins · Actualizado el 20 oct 2026

Set up your Meta test campaign

The Meta pilot is an A/B test with the same budget and the same creative. The only difference between the two arms is the conversion signal. Your team sets this up during the Prepare stage, with guidance from Scowtt.

You can optimize directly on Scowtt's custom event, but a custom conversion gives cleaner reporting.

  1. Start a new custom conversion

    In Events Manager, go to Custom conversions and select Create custom conversion. Name it clearly, for example Scowtt Lead.

  2. Choose the source and event

    Set the data source to your existing dataset, the action source to Website, and the event to the Scowtt custom event.

  3. Add the value rule and save

    Under Rules, add a required filter of Value greater than 0. This counts only events where Scowtt has passed a predicted value; Meta won't save the custom conversion without it. Save, and use it as a reporting metric.

Set up both arms

SettingControl (BAU)Test (Scowtt)
Campaign typeKeep as-isAdvantage+ Sales
DatasetYour existing pixel or datasetYour existing dataset
Optimization eventYour existing event, such as Lead or PurchaseThe Scowtt custom event agreed with your Scowtt team
Conversion locationKeep as-isWebsite (required even for CAPI data)
Performance goalKeep as-isMaximize value of conversions
Attribution window1-day click, no view1-day click, no view
Budget50% of the test budget50% of the test budget

Volume

Aim for about 500 leads a month in each arm, so the model has enough data to optimize.

Running Meta lead form campaigns

If your campaigns collect leads with Meta's Instant Forms instead of your website, set up the test arm the same way, with these differences. The control arm stays as above.

SettingTest (Scowtt), lead form campaigns
Campaign typeLeads
Conversion locationInstant Forms, or Website and instant forms
DatasetYour existing dataset
Optimization eventThe Scowtt custom event agreed with your Scowtt team
Performance goalMaximize number of qualified leads, or maximize number of conversions

Reporting

Analyze performance in Scowtt reporting, using Scowtt's ground truth conversion events as the source of truth.