Unacceptable Characters in Apple ID Password

Re: "Unacceptable Characters in Apple ID Password"

Here's another discussion thread, with a reply from a respected community member:

See: What characters are acceptable for an App… - Apple Community

Also: Apple Account security overview - Apple Support

Eg: says:

"It’s important for users to keep their Apple Accounts secure to help prevent unauthorised access to their accounts.

To help with this, Apple Accounts require strong passwords that:

• Must be at least eight characters in length

• Must contain both letters and numbers

• Must not contain three or more consecutive identical characters

• Can’t be a commonly used password

Users are encouraged to exceed these guidelines by adding extra characters and punctuation marks to make their passwords even stronger."

AFAIK, Apple doesn’t document the permissible Apple Account password character set, only the required combination, but it does appear to be most of the ASCII printable characters, but no spaces and no control characters.

Error messages posted around here posted within the last few years indicate the Apple Account password must be less than 64 characters, as well.

Or you can find out yourself, and remove and replace the special characters one at a time, then remove and replace two at a time, etc., and see which character(s) were the trigger.