Diagnosis
You have chosen a depreciation area(s) for posting, which is notautomatically entered in the general ledger. Therefore, you cannotcreate a document for Financial Accounting. However, in the transactionyou have chosen you can only post transactions with a document.

Procedure
Choose an area which has automatic entry to the general ledger, or usethe menu bar 'Postings' and pull-down menu 'Miscellaneous' to postwithout a document.