What is a recommended next step if the winning variation shows clear improvement?

• A. Increase the budget for the original campaign
• B. Apply the winning variation as a permanent change
• C. Discard all changes and revert
• D. Start a new test from scratch

Answer: (B)

When an A/B test shows a winning variation with clear improvement, the next step is to apply that variation as a permanent change across the campaign. This locks in the lift and ensures you keep the performance gains after the test ends, rather than revert to the original setup. It also keeps your process streamlined by standardizing the successful approach rather than maintaining two competing versions. The other options miss the opportunity to capture the proven boost: funding the original campaign ignores the improvement, reverting discards the gains, and starting from scratch wastes time that could be spent benefiting from the winning result. After implementing, monitor to confirm the improvement holds and consider scaling the winning approach or running follow-up tests to refine further.