In this FICO configuration activity we are able to define transaction types for retirements related to asset accounting.
IMG Path: Financial Accounting (New) -> Asset Accounting -> Transactions -> Retirements -> Define Transaction Types for Retirements
Tables: TABW, TABWT, TABWG, TABWH, T003, T003T, T856, T856T, TABWQ, TABWR
If you start the transaction from IMG path choose first option to choose the main activity related to it.
After entering into the transaction you will see a list of transaction types related to retirements.
On double click or New Entry, you will get following options to enter or change.