Transitioning from a 1P to a 3P model on Amazon is one of the most complex moves a brand can make — with risks spanning revenue loss, compliance issues, reseller disruption, and Buy Box instability.

In this case study, discover how Weider, a global sports nutrition brand, partnered with Pattern to execute a controlled, phased transition from 1P to 3P across Amazon’s key European marketplaces.

By prioritising top-selling ASINs, cleaning up the seller landscape, and resolving regulatory and classification issues, Weider successfully:

• Maintained revenue momentum throughout the 1P to 3P transition
• Regained Buy Box control and reduced reseller disruption
• Resolved compliance gaps and reinstated previously non-compliant ASINs
• Accelerated product expansion across priority Amazon marketplaces

Download the full case study to find out how.