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To guide users to create a simple example of Continuous Input-Output usage in APO PP/DS.


This Wiki Page will describe the settings that have to be made on ECC side in order to create a Continuous I-O scenario in APO and how Conti I-O planning is made in PP/DS.

Table of Contents

Example Creation

On ECC Side - BOM, Production Version and Integration Model

  • To work with continuous input, it is necessary to define a Distribution Key in the component specific data of the component in the Bill of Material. To do that, open the BOM in CS02 transaction.



  • Then double click on the item number of the component which is to be consumed continually and set a Distribution Key like GLEI.



  • To work with continuous output, it is necessary to define a Distribution Key in the Production Version of the Finished Product.   



  • The Production Version can be integrated either as a PPM and as a PDS.   


On APO Side – Checking PDS, PPM and Planning using PP/DS

  • If you are using PDS, execute transaction /SAPAPO/CURTO_SIMU and check in components tab that field I/O Scheduling is set to Continuous with Offset.



  • If you are using PPM, execute transaction /SAPAPO/SCC03 and check that the Component Consumption is set to “C” – Continual Consumption. 



  • Open the Product View for the Finished Product and create a forecast. Then, execute heuristic Planning of Standard Lots for Conti-I/O. Also, make sure that fields Continuous Scheduling Date and Continuous Scheduling Time are displayed.



  • In APO, we do not create multiple elements to represent the distribution. Instead, this can be checked with the help of the Continuous Dates. For Receipts, the Continuous Scheduling Date represents the date in which the Product starts becoming available. For requirements, the Continuous Scheduling Date represents the date in which the whole quantity has to be available – in contrast, the Requirements Date is the date in which the Material starts being required.
  • Please, notice: In MD04 transaction, a single receipt element will be shown. This is expected, as distributed production from ECC side and continuous production from PP/DS are not the same scenario and to not work the same way. 



  • Also in the Product View, go to menu Settings and choose User Settings. Then, go to tab Product 1 and make sure that flag “Distributed Quantities” is set.



  • Go to Periods tab and check that the Available Quantity is distributed according to the shifts.   



  • Go to Quantities tab and check that a production curve is displayed to represent the continual production/consumption. 



  • If you uncheck indicator “Distributed Quantities” in the User Settings, a single line will be used to represent the receipt/requirement. 



  • Now, open the Product View for the continually consumed material and check the Continuous Scheduling Dates.    



  •  You can also check in Periods tab that the Total Requirements will continually increase. 



  • The requirements curve can be checked in Quantities tab. 



  • In the Product Stock chart, at the Detailed Scheduling Planning Board, the production curve and requirements curve also reflects the Continuous-Input/Output scenario:

  • Please, notice that, specifically for the component materials which are consumed continually but that are procured externally, it may happen that after running SAP_PP_C001, a single or Purchase Requisition is created to cover the entire continuous demand at once. 
  • In this scenario, if it is expected that multiple discrete PurRqs should be generated, SAP_PP_C001 should be copied into a new ZAP_PP_C001 heuristic. In the settings of ZAP_PP_C001, the flag "Orders Not Considered When Interruptions" must be set. Furthermore, the new heuristic should be used for planning for the externally procured material (while SAP_PP_C001 should still be used for the others):


Related Content

Related Documents

SAP Help Planning with Continuous Input/Output
SAP Help Integration of Bills of Material

Related Notes

SAP Note 456278 -  Distribution Key/Continuous Receipt, Requirement
SAP Note 448960 - Net requirements calculation (documentation)
SAP Note 584204 - Planning standard lots for continuous I/O (SAP_PP_C001)

1 Comment


    Excellent Stuff.   Thanks for sharing.