Method: GET_PO
Method: CREATE_FORM_OUTPUT
Method: IF_FPM_GUIBB_LIST~GET_DATA
Method: MAKE_EPM_PURCHASE_ORDERS
Method: CALCULATE_HEADER_AMOUNTS
Method: IF_FPM_GUIBB_FORM~GET_DATA
Method: IF_FPM_GUIBB~INITIALIZE
Method: CHECK_CONSISTENCY
Method: CONSTRUCTOR