As soon as the reworked part has been returned from the subcontractor, either the subcontracting monitor ( ADSUBCON ) or the standard function Goods Receipt for Purchase Order is used to receive the part back into stock.

Together with the goods receipt the consumption posting for the components from the subcontracting stock are made.

It may happen that the subcontractor does not return the original part back but a ‘unit exchange’ (a different part with the same material number but a different serial number). In this case the serial number of the receiving material can be changed during goods receipt posting.

As the subcontracting purchase order item has an account assignment to the refurbishment order (account assignment F in the standard system) an additional posting might be necessary to update the stock, depending on the special stock assignment of the purchase order. The additional posting is performed using business add-in (BAdI) BADI_DIAD_GOODMVT_1, for which a default implementation is provided in Customizing under  Plant Maintenance and Customer Service Maintenance and Service Processing Subcontracting for MRO Processes Business Add-Ins Trigger Follow-up Actions after Goods Movement .

At the time of goods receipt, the modified part is posted to stock with its new material number and the original serial number. The consumption posting of the components is also made.

The serial number master record of the modified part is updated with the new material number during goods receipt posting.

As the subcontracting purchase order item has an account assignment to the refurbishment order (account assignment F in the standard system) an additional posting might be necessary to update the stock, depending on the special stock assignment of the purchase order. The additional posting is performed using business add-in BADI_DIAD_GOODMVT_1, for which a default implementation is provided.

In case of an unplanned modification of the repairable part during the subcontracting process, the purchase order allows the goods receipt posting for the returned part with its correct (changed) material number. The serial number of the part is unchanged.

The material exchange on the purchase order item can be performed from the subcontracting monitor (transaction ADSUBCON ) by choosing Material Exchange