On 01.03.2024, at the headquarters of the Institute of Agricultural and Food Economics – National Research Institute (IAFE-NRI) in Warsaw, a meeting was held to present the assumptions for the transformation of the FADN system into the FSDN (Farm Sustainability Data Network). The meeting was attended by coordinators and deputy coordinators for FADN from 16 Agricultural Advisory Centers, employees of the Agricultural Holdings Accountancy Department and the Director of IAFE-NRI. During the meeting, important issues were raised, such as: the size of the sample of agricultural holdings for the FADN field of observation in Poland, the economic size threshold and new variables that will be collected under the FSDN system.