This report shares the experience during selection, implementation and maintenance phases of an electronic laboratory notebook (ELN) in a public private partnership project and comment on user feedback. In particular, we address which time constraints for rollout of an ELN exist in granted projects and which benefits and/or restrictions come with out-of-the-box solutions. We discuss several options for the implementation of support functions and potential advantages of open access solutions. Connected to that, we identified willingness and a vivid culture of data sharing as the major item leading to success or failure of collaborative research activities. The feedback from users turned out to be the only angle for driving technical improvements, but also exhibited high efficiency.Based on these experiences, we describe best practices for future projects on 15 Abstract 16 This report shares the experience during selection, implementation and maintenance phases of an 17 electronic laboratory notebook (ELN) in a public private partnership project and comment on user 18 feedback. In particular, we address which time constraints for roll-out of an ELN exist in granted 19 projects and which benefits and/or restrictions come with out-of-the-box solutions. We discuss 20 several options for the implementation of support functions and potential advantages of open 21 access solutions. Connected to that, we identified willingness and a vivid culture of data sharing 22 as the major item leading to success or failure of collaborative research activities. The feedback 23 from users turned out to be the only angle for driving technical improvements, but also exhibited 24 high efficiency. Based on these experiences, we describe best practices for future projects on 25 implementation and support of an ELN supporting a diverse, multidisciplinary user group based 26 in academia, NGOs, and/or for-profit corporations located in multiple time zones.