SAP Note 17548 - AA328 Posting yr.earlier than capitalization yr.

Symptom:

The posting date of a purchasing document which contains an item assigned to an asset is earlier than capitalization date of the asset. When posting the purchasing document (purchase order, PReq), you get the messsage:
AA328 Posting yr.earlier than capitalization yr.

Reason and Prerequisites

The posting year must not be earlier than the the capitalization year.

Solution
Either set the posting date of the purchasing document to a date after the capitalization date or set the capitalization date in the asset master record to an earlier date.