How does a project key work
The project key field is used to uniquely identify a project, even if its name is identical to another project name.
Each edit request ID contains the project key
Note: Depending on the language you use, the key might not be generated. Currently the key is autogenerated when using the Latin characters. If you entered the project name using different or special characters, you may need to enter the project key manually, using the Latin characters.
Project key must be unique
Project key can contain numbers or uppercase letters in any combination as long as the key is unique and no longer than 5 characters.