include any YouTube or Vimeo URL Set price to 0, if the course is free Only use, if another price amount exempt VAT is used for corporate clients and/or Go sites (like AEGON) Only set values for group products nn refers to Nationale Nederlanden This ID can be set by Dutch learning providers that are registered at https://www.duo.nl/zakelijk/hoger-onderwijs/studentenadministratie/ This ID can be set by Dutch learning providers that are registered at https://duo.nl/open_onderwijsdata/databestanden/mbo/crebo/ nn refers to Nationale Nederlanden