You can use any combination of upper or lowercase letters, numbers, and underscores ( _ ) when naming your subdirectory. Do not include spaces or special characters.

Keep in mind that just like file names, subdirectory names are case sensitive. In other words, subdirectory_1 is not the same as Subdirectory_1.

We recommend using all lowercase letters in your file and folder names to avoid any confusion when creating links that reference these names.