Scenario:
This error Message POP Up while doing a Bank Reconciliation.
Reason:
This is a situation in where User Goes to Bank reconcilation and chooses an account which reconcilied partially and made “complete for later” option , which is not actually saved and tries to change the date.
Here as the Bank reconciliation is made made “complete for later older period the partilly reconciled will be deleted by changing the date.
Solution:
Enter the date shown on pop up message in bank statment field and save the reconciliation done till that.