Digitalization enables firms to develop and offer data-enabled services and, thereby, reach new customers and serve customers in new ways. Firms operating in the business-to-business (B2B) market need data-related capabilities and service expertise to develop these services, but they do not necessarily possess such capabilities. Instead, they may collaborate with other firms, information technology suppliers, and customers in a service network. While previous research covers data-enabled services at the firm level, more knowledge is needed to supplement understanding at the service network level and to consider data as a central point for developing service capabilities. This paper investigates how different firms develop their data-enabled services within a service network. We conducted a single case study focusing on a B2B service network in the hospitality industry pursuing digitalization jointly. The findings show several challenges that hinder firms from developing their data-enabled services and motivate them to seek capability combinations at the network level. In response to these challenges, firms engage in co-creation activities that enable them to exchange capabilities related to both data and customer understanding. These exchanges support the gradual development of their own capabilities for data-enabled services in the long term. The findings extend digital servitization research by introducing data-related co-creation to advance network-level knowledge and capabilities. Empirical insights are offered on value co-creation, highlighting the central role of data at the network level.