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This graphic is explained in the accompanying text Example of Backward Scheduling for External Procurement Locate the document in its SAP Library structure

Example Data

Requirements date

31.10. (Monday)

Planned delivery time of the material

10 days (calendar days)

Processing time for purchasing

1 day (workdays)

Goods receipt processing time

2 days (workdays)

Opening period

10 days (workdays)

Workdays = Monday to Friday

  

Scheduling

  1. Requirements data minus goods receipt processing time = order finish date (provision date for vendor)

    2. 31.10. (Tuesday) minus 2 workdays = 27.10. (Friday)

  2. Order finish date minus planned delivery time minus processing time for purchasing = release date for purchase requisition or order start date of planned order for external procurement.

    3. 27.10. (Friday) minus 10 calendar days minus 1 workday = 16.10. (Monday)

  3. Release date minus opening period for planned order = opening date of planned order

16.10. (Monday) minus 10 workdays = 2.10. (Monday)

 

 

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