During the cooperation with Unitymedia, which lasted until the merger with Vodafone, HTW/O was significantly involved in the sales promotion in North Rhine-Westphalia and Baden-Württemberg. Until July 2020, the campaign focused on a holistic and long-term sales promotion at the POS. This included customized sales aids, events, training and incentives for promoters, supported by direct advertising with a focus on interactive competitions. The main objective was to strengthen long-term customer loyalty and increase sales for Vodafone GmbH, which was successfully achieved.