Cannot create Oracle user with specific password

Question

In Oracle I tried this query

create user ACT_APP 
    identified by password 
    profile APP_PROFILE 
    default tablespace TS_MODULE_D 
    temporary tablespace TEMP;

after sending this query and i got these 2 errors.

1. password verification for the specified password failed
2. Password should contain at least one digit, one character and one punctuation

So I modified my query to

create user ACT_APP 
    identified by !234qwer 
    profile APP_PROFILE 
    default tablespace TS_MODULE_D 
    temporary tablespace TEMP;

But I got another error

missing or invalid option

Answer 1

From the manual:

Passwords must follow the rules described in the section "Database Object Naming Rules"

!234qwer is not a valid object name because of the leading ! therefor it needs to be enclosed in double quotes:

create user ACT_APP 
    identified by "!234qwer"
    profile APP_PROFILE 
    default tablespace TS_MODULE_D 
    temporary tablespace TEMP;