When you are naming accounts, domains, or assets, you have to keep in mind the following conventions used in Iroha 2:
There is a number of reserved characters that are used for specific types of constructs:
@is reserved for
#is reserved for
$is reserved for
%is reserved for
The maximum number of characters (including UTF-8 characters) a name can have is limited by two factors:
[0, u32::MAX]and the currently allocated stack space.