D4.3 Report on the certification support and guidance for repositories and reviewers

Supporting repositories towards becoming more trustworthy and FAIR-enabling is at the heart of the FAIRsFAIR project. This paper introduces the in-depth support programme created by FAIRsFAIR and shares the successes, common challenges and lessons learned. It details the support and guidance provided for repository managers as well as for CoreTrustSeal Reviewers. This work also provides recommendations for developing a support programme towards repository certification.