Diagnosis
There is no notice period. This has been defined in the SAP CustomizingImplementation Guide (IMG) for the selected notice reason.

Procedure
You adjust the withdrawal period start (also called "Notice on") to thenotice receipt date. This means that there are no days between thenotice receipt date and the withdrawal period start.
Alternatively:
The notice reason has not been correctly maintained. You or your systemadministrator can change the notice reason accordingly in the IMG,whereby the indicator for suppressing the notice period must bedeselected by choosing the following from the IMG: SAP Banking ->Customer Accounts -> Account Management -> Notice Management ->Maintenance of Notice Reasons and deselecting the indicator NoPeriod of Notice.