By Billie drives 40% new customers with branded resale

By Billie first partnered with PostCo in June 2022 to manage returns and retain more revenue.
‍
‍In early 2025, they expanded the partnership by launching their branded resale platform with PostCo. Within just 48 hours, 53% of listed items were sold. Today, resale drives new customer acquisition, increases average order value, and keeps revenue within the brand.

‍

‍

About the Brand

‍
By Billie is an Australian children’s and women’s wear brand focused on durable, high-quality clothing made from natural fabrics. Their versatile designs are made to be cherished, worn, and passed down, making them an ideal fit for resale.
‍
‍

The Problem

‍
Before launching branded resale with PostCo, By Billie customers were already reselling items on platforms like Facebook Marketplace. The brand had no visibility, no engagement with resale buyers, and missed out on valuable traffic and revenue. Building an in-house resale platform would have been costly and time-consuming.
‍

The Solution

‍
With PostCo’s plug and play platform, By Billie launched their branded resale site in just one week, with no development time or extra workload for their team.
‍

Customers can now list and buy preloved By Billie items directly on the brand’s website. Sellers earn store credit to shop again, helping drive loyalty and repeat purchases.
‍
PostCo manages all operational workload, including listings, approvals, and customer support, allowing the By Billie team to stay focused on their core business.
‍

The resale platform created a full brand experience where customers can buy, wear, and resell within the By Billie site, strengthening customer loyalty and increasing lifetime value.
‍

Sustainable + Profitable

‍

By integrating returns and resale, By Billie gives customers an easy way to resell non-returnable items instead of disposing of them. Customers are redirected to the resale platform to list these items for sale, helping extend the life of products and reduce waste.

‍

The Results
‍

• 20+ listings within the first 48 hours: Most secondhand sales now happen directly on By Billie’s site instead of third-party marketplaces.
  ‍
• 40% of resale orders from new customers: Resale brought in first-time By Billie buyers.
  ‍
• 67% of resale buyers purchased full-priced items: With PostCo’s mixed checkout, resale buyers added full-priced items to their cart, increasing overall order value.
  ‍

‍‍
By Billie now owns their resale channel, driving strong growth in customer acquisition, average order value, and sustainability efforts.

‍
PostCo is proud to support By Billie with a branded resale solution that delivers real results, and we look forward to continuing the partnership as they grow.

‍

‍

Our customers love the resale experience, and so do we. PostCo made it incredibly easy to launch, and we saw the impact right away. No extra work for our team, just real results and stronger connections with our community.

_{Sophie, By Billie}

‍