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Function documentationStretching and Shrinking Operations

 

This function allows you to increase or decrease the duration of an operation to ensure continuous production on each resource and to eliminate gaps between operations. You do this by redefining the duration of the operation without changing the quantity or other parameters. This duration must be entered as a percentage of the original duration of the operation. For example, assuming the original duration of the operation as 100%, you can redefine it as 125% to stretch the operation to 125% of its original duration.

Prerequisites

The following master data is maintained:

  • Location

  • Resource

You have activated the business function SCM-APO-PPS, Continuous Production and Multi-Resource Scheduling (SCM_APO_PPDS_PI).

Activities

  1. Run transaction /SAPAPO/RES01 to go to the Resource Master.

  2. Open the resource with the operations.

  3. On the Time-Cont. Capacity tab, enter values for the Max. Stretching Allowed % and Max. Shrinking Allowed % fields. Save your entries.

    The entered values are displayed in the resource header data.

  4. Go to the Resources Chart of the Detailed Scheduling Planning Board (transaction /SAPAPO/CDPS0).

  5. Right-click the operation that must be stretched or shrunk, and choose Stretch/Shrink Operation.

  6. In the dialog box that appears, enter the changed duration as a percentage of the original duration of the operation. This value must be within the maximum and minimum allowed values defined above.

  7. Save your changes.

Example

An operation takes up, for example, 10 hours in normal circumstances. If you define the Max. Stretching Allowed % value at 120%, the operation can be extended by a maximum of 2 hours, that is to say, to 120% of the original duration. A stretched operation can therefore consume not more than 12 hours.