SAP Message 5C622 - Posting date is not within validity period of account.

Diagnosis
The posting date &V1& is not in the validity period (&V2& to &V3&) forcurrent account &V4&.

System Response
The posting can not be created.

Procedure
Change the posting date so that it is in the validity period for theaccount.
If necessary you can change the validity period for the account. Forthis you need an extended account authorization.