You must follow the security and compliance guidelines for the password established by your organization, or the VMware recommended globally accepted standard guideline to ensure the safety and security of the infrastructure.
The password must contain at least eight characters, have characters from at least two classes from Group One (lowercase and uppercase characters and numbers) and at least one character from the class Group Two (Special Characters).
Valid Character Class Group One:
[a-z],[A-Z],[0-9]
Valid Character Class Group Two:
[~!@#$%^&]
For example,
Thi1sISV@lid
ThisIsVali$Too
ThisisnotVal1d