During March and April 2021, the CGS metadata team (Dana Čápová, Pavla Kramolišová and Olga Moravcová), supported by colleagues from GSI (James Trench and Trevor Alcorn) prepared sets of training videos. Based on selected videos, two webinars were held on May 17 and June 2, 2021. The webinars were attended by a total of 18 participants from 9 GeoERA projects (GIP-P, RESOURCE, TACTIC, 3DGEO-EU, HOVER, HIKE, FRAME, MINDeSEA, GeoConnect3D). Participants were instructed on how to use the EGDI Metadata Catalogue, how to create metadata for structured and unstructured data from GeoERA projects, and how to use metadata when uploading data to the EGDI platform. The CGS metadata support team that hosted these webinars also explained where to find available videos, tutorials and other useful materials.