SAP Message AC764 - None or both TTYs should be for retirement of curr-yr acquis. (&1 and &2)

Diagnosis
The transaction types for retirement of current-year acquisitions areinconsistent. Either enter a transaction type for retirement ofcurrent-year acquisitions in both transaction type &V1& and transactiontype &V2&, or do not enter it in either of the two transaction types.Entering it for only one of the two transaction types is not allowed.

System Response
Check the Customizing settings for transaction types.