The dynamic space environment can lead to potentially hazardous and sudden effects on spacecraft that can have serious impacts on operations and service provision. The continuous real-time monitoring of space weather allows to make informed decisions related to spacecraft operations and helps with the correlation of results for future risk mitigation. Established in the frame of the ESA Space Situational Awareness programme and further strengthened in the ESA Space Safety programme, the ESA Space Weather Service Network combines European assets, including ground- and space-based space weather monitoring systems and data-processing and modelling capabilities. It builds on these in combination with expert support to develop user-tailored services, providing timely and reliable space weather information to end users. Individual products, reports, toolkits and user support are grouped into targeted services according to the needs of user communities ranging from spacecraft operators to power system operators. The network is organised around five Expert Service Centres focusing on Solar Weather, Heliospheric Weather, Space Radiation, Ionospheric Weather and Geomagnetic Conditions, in addition to a central Data Centre and a Coordination Centre. As part of its service evolution strategy, the network sets up user support campaigns during which tailored space weather information is proposed through prototype dashboards and/or bulletins. The campaigns focus on periods of high solar activity and help establish tailored alerting schemes. Campaign feedbacks are taken as inputs for further service developments and product improvements. This paper provides a status of the services currently offered by the ESA Space Weather Service Network Portal (https://swe.ssa.esa.int) and some lessons learned from the user campaigns. A focus is given on data products, tools and support that can help operators anticipate and possibly mitigate space weather effects. In addition, the recent user campaign performed in collaboration with the European operational satellite agency EUMETSAT for its fleet in both Low-Earth and geostationary orbits is presented.