Although the use of special characters is highly recommended when it comes to setting up a password, here is a list of characters that should be avoided when setting a password for Microsoft Dynamics: [ \ ^ $ . | ? * + ( ) # / % ' " ` to prevent issues in provisioning instances.
The error message reported by customers that had one or more characters from this list in their passwords is the following: "Error = Format of the initialization string does not conform to specification starting at index {x}".