Parameter names are case sensitive.
A parameter name must be unique within an AWS Region
A parameter name can't be prefixed with "aws" or "ssm" (case-insensitive).
Parameter names can include only the following symbols and letters: a-zA-Z0-9_.-/
A parameter name can't include spaces.
Parameter hierarchies are limited to a maximum depth of fifteen levels.
Naming Constraints:
Parameter names are case sensitive. A parameter name must be unique within an AWS Region A parameter name can't be prefixed with "aws" or "ssm" (case-insensitive). Parameter names can include only the following symbols and letters: a-zA-Z0-9_.-/ A parameter name can't include spaces. Parameter hierarchies are limited to a maximum depth of fifteen levels.