It seems that you are using the Namibia test survey. If you go to Tools->Properties you can see that this survey expects a very simple CSV to define the sampling design. This CSV should just contain three columns : ID, YCOORDINATE, XCOORDINATE If you want a simple way to produce a sample design over a country ( or province/district) you can use this script: [Google Earth Engine script App to produce grid over country][1] . You just need to change the name of the country and the distance between the plots (it generates a systematic sample design) After you **RUN** the script you nee to **click on the link on the right frame of the Code Editor (Console) to download the resulting CSV** and then "clean it" in Excel to just keep the ID, Latitude and Longitude columns. The CSV includes information on the country, province and district for the points. Let us know is it still does not work! [1]: https://code.earthengine.google.com/46a7d6ee5d6ed189bccb3c14f44bc3d2https://collectearth.users.earthengine.app/view/collect-earth-grid-generator

It seems that you are using the Namibia test survey. If you go to Tools->Properties you can see that this survey expects a very simple CSV to define the sampling design. This CSV should just contain three columns : ID, YCOORDINATE, XCOORDINATE If you want a simple way to produce a sample design over a country ( or province/district) you can use this script: [Google Earth Engine script to produce grid over country][1] . You just need to change the name of the country and the distance between the plots (it generates a systematic sample design) After you **RUN** the script you nee to **click on the link on the right frame of the Code Editor (Console) to download the resulting CSV** and then "clean it" in Excel to just keep the ID, Latitude and Longitude columns. The CSV includes information on the country, province and district for the points. Let us know is it still does not work! [1]: https://code.earthengine.google.com/46a7d6ee5d6ed189bccb3c14f44bc3d2