An eightfold increase in sales following a single campaign. How did the K365 Group boost sales at InPost Von Halski?
InPost Von Halsky
29 October 2026
The K365 Group sells food and household cleaning products at InPost Von Halsky. The first radio campaign in which the company took part proved to be a breakthrough for sales. The promotion for washing capsules, developed in collaboration with the Von Halsky team, increased the K365 Group’s sales eightfold compared with the previous month. Read on to find out how the process unfolded!
A hub for brands that wants to be where the customer is
The K365 Group is an e-commerce hub for major brands, which, amongst other things, manages the official online sales of brands such as Persil (Henkel), Purina, Dolce Gusto and NAN infant formula. It manages the entire e-commerce presence for brands: sales, logistics, customer service and communication. Outwardly, it operates like any other retailer, but behind its offering stand the biggest brands in the FMCG market. It has been working strategically with InPost for over a decade, so this new sales channel was a natural step for the company.
The K365 Group has been involved with Von Halski from the very beginning: it developed the assistant alongside InPost before it was unveiled to a wider audience.
“We’ve actually been with you right from the very first day. We developed this project together with you at a stage when people didn’t yet know what Von Halsky would be.”
Piotr Baranowski, Business Development Director, K365 Group
The argument? The InPost app’s reach of 17 million users – the very group that brands want to reach.
“For us, the most important thing is to be wherever our customers are. We firmly believe that you are a player capable of building a scalable business – one that will help the brands we work with to grow.”
Piotr Baranowski, Business Development Director, K365 Group
A breakthrough: the campaign that increased sales eightfold
In August, the K365 Group joined Von Halski’s radio campaign for the first time. Together with a campaign manager from the AI assistant team, they developed a promotion for washing capsules. This was their first major campaign in the household cleaning products category. A fast-moving product, an attractive price and a campaign directing customers straight to the offer – that was all it took.
“We ran that first radio campaign with you in August, and that was the moment when sales skyrocketed. Together with your team, we organised the first major promotion in the household cleaning products category, focusing on capsules. That was the most impactful moment – we increased sales eightfold compared with the previous month.”
Radosław Raniszewski, Head of Sales, K365 Group
The response exceeded expectations: the promotion sold out the stock set aside for the campaign faster than anticipated.
Znajdź najlepsze oferty w kilka sekund z Von Halskim - asystentem zakupowym w apce InPost Mobile. Odkryj produkty dopasowane do Twoich potrzeb i oszczędzaj na dostawie.
Von Halsky węszy okazje. A Ty? Wiesz już, czego szukasz?
Ongoing promotions, not one-off offers
Following a successful launch, the K365 Group has not slowed down. They regularly submit products for ‘Deal of the Day’ and ‘Deal of the Week’ offers, and in subsequent campaigns they are expanding their promotional range to include new categories. There is just one rule: only products that sell really well are included in the promotions.
“We supply all the products we consider to be top-sellers in e-commerce, and we’ve already planned further promotions. We run daily and weekly special offers all the time. We’ll be featuring products not only from household cleaning, but also from pet care – where we’re also developing our NaszeZoo.pl shop – and from the supermarket.”
Radosław Raniszewski, Head of Sales, K365 Group
A platform that grows alongside its partners
The K365 Group operates on a large scale and actively shares its requirements with the Von Halski team. As the company emphasises, its suggestions are quickly translated into new features in the seller’s dashboard.
“We talk about certain things and see them happening. We can see the sheer amount of work that’s gone into it and the number of new things.”
Radosław Raniszewski, Head of Sales, K365 Group
Results: sales on the rise, with more categories on the way
Sales eight times higher in August compared with July, following the K365 Group’s first radio campaign.
Stock set aside for the promotion sold more quickly than expected.
Further categories In the special offer: household cleaning products, pet supplies, supermarket.
Three tips from the K365 Group
Would you like to make the most of the special offers on Von Halski? Here’s what you should do:
- When selecting products for a promotion, choose those that are already selling well. A campaign works best when it boosts a popular product, rather than rescuing a niche one.
- Talk to the manufacturers about a joint campaign. A joint campaign with the brand allows us to offer a price that really attracts customers.
- Plan your promotions on a regular basis, together with your mentor. Von Halski’s daily and weekly special offers and campaigns are a regular feature, not a one-off event.
This is just the beginning
The K365 Group is set to face its busiest period in e-commerce: Halloween, Black Week and the festive season, for which the company is already preparing further campaigns featuring new product categories and brands.
Would you like to find out what Von Halsky can offer your shop? To get you started, you’ll enjoy 0% commission, access to 17 million InPost app users, and integration via API or one of our integration partners. Start selling Available on InPost from Von Halsky today.
Join us
To activate the InPost Von Halsky integration, you need an active logistics agreement directly with InPost (either a commercial or subscription-based contract) covering two services:
- InPost Paczkomat® 24/7
- InPost Courier (Standard Courier)
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