createUser status codes

You may encounter the following status codes when you apply the
createUser
API.
0000: Success. 6001: Invalid account. 6002: User already exists. 6005: Internal error. 600B: Schema validation failed. 600E: Client certificate is revoked. 6015: Invalid input. 6020: User PIN value does not meet policy settings for this account. 6021: User PIN is not enabled for this account.