R12: Error 'The Statement Date Must Be Before The Current Date. Please Enter A Valid Statement Date' While Entering Bank Statement Manually Note:452266.1Symptoms
When entering a bank statement manually in Bank Statement form, the following error appears if the statement Date field has system/current date:
'The Statement Date Must Be Before The Current Date. Please Enter A Valid Statement Date'

Cause
This is intended functionality. Users are not allowed to enter a bank statement manually in line with the true definition of previous-day bank statements, that is, a bank provides the statement of a particular day only the next day.
This can be seen in BUG 5502083 - CONS120.7:Not Able To Create Bank Statement With The Current Date

Solution
The date in the statement Date field must be atleast one day prior to system date.