Rotables/Sharing of Spare Parts, Subcontracting Improvements 
Technical Name of Business Function |
AD_MRO_CI_3 |
Type of Business Function |
Industry Business Function |
Available as of |
Enhancement Package 4 for SAP ERP 6.0 |
Technical Usage |
Discrete Industries and Mill Products |
ECC Software Component |
|
Application Component |
Rotables (IS-AD-ROT) Sharing of Spare Parts (IS-AD-SSP) subcontracting (IS.AD-SUC) |
Directly Dependent Business Function Requiring Activation in Addition |
Discrete Indus. - Mill Products (DIMP_SDUD) Serial Numbers in Purchasing (LOG_MM_SERNO) |
Maintenance in maintenance, repair, and overhaul (MRO) organizations are becoming increasingly complex as a result of a relentless drive to cut costs and improve products and services. This in turn increases the demand for high-performance functions to better manage and support maintenance processes. Enhancements in this business function focus on rotables management and subcontracting.
Prerequisites
You have installed the following components as of the version mentioned:
Type of Component |
Component |
Software Component |
SAP-APPL 604 EA-APPL 604 ECC-DIMP 604 |
Features
This business function provides the following functions:
Rotables
You can use customer stock with PM/CS orders.
Stock Determination
If components are assigned from a task list to a PM/CS order, the check of special stock information (customer, WBS element, sales order number/position, and so on) is executed after the stock determination process. If there is no special stock information available in the order which is needed for the special stock indicator, an error message is raised and no special stock indicator is assigned to the order.
For more information, see Rotables Management.
Sharing of Spare Parts (SSP)
You can use BAPI_ALM_ORDER_MAINTAIN with customer stock. Note that this does not apply to refurbishment orders.
Use customer stock within the goods movement transaction MIGO.
Use the movement types 105, 501, 711, 717, and their reversal movement types for customer stock.
For more information, see Sharing of Spare Parts.
Subcontracting
Forward exchange
If a service provider urgently needs to get a repaired part from the subcontractor and is not able to send the unserviceable parts to the subcontractor before he needs/receives the replacement part, the subcontractor sends a serviceable part from his own stock directly to the service provider. The unserviceable part is sent to the subcontractor at a later point in time, who then repairs it and adds it to his own stock. You can monitor forward exchange using the A&D subcontracting monitor (transaction ADSUBCON). For more information, see Forward Exchange.
Goods movement transaction (MIGO)
You can use the goods movement transaction MIGO for A&D subcontracting goods movements.
Serialization
You can now serialize stock transport items and subcontracting items within purchase orders and purchase requisitions. You enter the serial numbers on the Delivery Schedule tab page. In recursive subcontracting scenarios, the serial numbers you specify on the Delivery Schedule tab page belong to the main component on the Component tab page. For more information, see Serial Number Management in Subcontract Purchase Orders and Purchase Requisitions.
The special stocks 'project stock' and 'sales order stock' can be valuated.
Unplanned material exchange: You can also decide which type of interchangeability you use during an unplanned material exchange (UME) in ADSUBCON. For more information, see Unplanned Material Exchange.
A&D MPN interchangeability logic using FFF classes.
Customer-own interchangeability logic, if required.
Manual entry of interchangeable materials, if you have the correct authorization.
If you want to make your own settings for UME interchangeability you must make Customizing settings under
Plant Maintenance and Customer Service
Maintenance and Service Processing Subcontracting for MRO Processes Business Add-Ins Create UME Interchangeability Logic. 
Partial delivery
It is possible to have multiple goods issues (partial deliveries) with or without outbound deliveries.
Multiple goods issue with outbound deliveries
The components of a subcontracting purchase order (including the forward exchange variant) can be issued in multiple outbound deliveries and their goods movements. The transaction ADSUBCON supports the process by proposing (remaining) quantities and serial numbers.
Multiple goods issue without outbound deliveries
The components of a subcontracting purchase order (including the forward exchange variant) can be issued in multiple goods movements. The transaction ADSUBCON supports the process by proposing (remaining) quantities and serial numbers. For forward exchange, note that all possible serial numbers appear in the serial number popup, even those that have already been assigned to outbound deliveries. You must check which serial numbers have already been assigned and manually remove them from the selection list.
Return material authorization (RMA) orders
RMA orders are created from repair orders in sales and distribution as part of the returns and repairs process. The standard returns and repairs process has been adapted for A&D subcontracting. For more information, see RMA Orders in A&D Subcontracting.
Enhancements to purchasing in subcontracting
Purchase requisition update after changes in PM/CS order .
Changes in PM/CS order are now reflected in the corresponding purchase requisition. All changes must be applied while the purchase order is not created (purchase order created from the purchase requisition)
Synchronization of purchase order item account assignments and special stock indicator
Purchase order item account assignments in project or sales orders are now automatically synchronized with the special stock indicator for sales order stock and project stock on the SPEC2000/SC tab page (in ME21N).
Constraints
Note that for SSP, you cannot use PP orders with customer stock.
For subcontracting, you cannot use refurbishment orders.