The solution is to set the value for the
number data type to less than 10 digits or characters. To have the value of more than 10 digits or characters, you should change the data type from
NUMBER to
VARCHAR2.
For example:
Data type (PWD is set to VARCHar2):

The value in PWD for Admin is set to twenty (20) digits:

Click the
Test User Lookup button:

After changing the data type from
NUMBER to
VARCHAR2, the configuration is successfully accepted for the password, which is more than 10 digits.
Note: In the PPS Admin Guide, page 328, Table 27 describes the 'DATA TYPE' to be used for 'COLUMN':