If new columns are missing after upload, review the following common issues:

1. Avoid spaces in attribute names
   • Attribute names should not contain spaces.
   • If spaces are present, they will be automatically converted to underscores during upload.
   • Example: Region Name becomes Region_Name.
2. Attribute names are case-insensitive
   • The CDS importer does not distinguish between uppercase and lowercase letters in attribute names.
   • Example: Region and region are treated as the same field.
3. Use the correct file format
   • The file must be in CSV (comma-separated values) format.
   • UTF-8 encoding is not supported. Use standard ASCII encoding instead to ensure compatibility.