How a confidential e-commerce brand recorded 55% higher ROAS with Bily

This confidential e-commerce brand’s account record compared two Meta campaigns over the same six-day reporting window. The brand identity is not disclosed in the recovered source. One campaign used the account’s principal pixel; the other used a pixel connected through Bily. Spend differed by 1.4%, providing a useful side-by-side view without presenting the comparison as a controlled experiment.

The comparison

The recovered guide recommended creating a new pixel, connecting it through Bily, launching two otherwise identical campaigns, and leaving them unchanged for 15 to 20 days. The preserved screenshot captures only 22–27 September 2023, so this case reports the six days that can be inspected rather than claiming the full recommended test duration was completed.

The principal-pixel campaign spent €1,553.10. The Bily-pixel campaign spent €1,531.67.

The campaign identity is redacted. Values are transcribed from the preserved Meta screenshot.

What Meta reported

At nearly equal spend, the Bily-pixel campaign recorded 2.15 ROAS versus 1.39 for the principal-pixel campaign, a 54.7% relative difference. Cost per purchase was 42.55 versus 57.52, 26.0% lower, while purchase conversion value was €3,297.41 versus €2,162.51, 52.5% higher.

The traffic metrics moved in the same direction during the captured window: CPC was €0.39 versus €0.91, CPM was €10.57 versus €12.61, CTR was 2.68% versus 1.38%, and AOV was 91.59 versus 80.09.

How to read the result

This is a redacted account screenshot, not an independently audited randomized experiment. The export does not include the campaign settings, audiences, creative, attribution window, change history, store order ledger, or evidence that the two campaigns received comparable delivery. It also does not show whether the campaigns ran beyond the six-day window.

The screenshot therefore supports a narrow statement: in this captured Meta comparison, the Bily-pixel campaign recorded stronger in-platform outcomes at nearly equal spend. It does not establish that tracking was the only cause, convert attributed conversion value into incremental revenue, or guarantee the result will transfer to another account.

Next steps

Rerun the comparison for the recommended 15 to 20 days with audience, creative, budget, bid strategy, attribution window, and campaign changes documented in advance. Prevent audience overlap where possible and reconcile Meta results with paid Shopify orders, refunds, and net revenue. The new record should publish both the test design and the outcome, including a null or negative result.