The TOSSD statistical framework aims to provide a complete picture of all official resources flowing into developing countries for their sustainable development, providing reliable, comparable and transparent data. This working paper compares the TOSSD data for the year 2019 with datasets collected by three countries: Bangladesh, Cameroon and Colombia. The study explores similarities and differences between the TOSSD data and the data collected at the local level, and provides recommendations on how to improve data completeness and accuracy. It also suggests how a data validation mechanism for TOSSD could work, allowing recipient countries to provide timely feedback.