Sequence of Change Numbers

Use

The sequence algorithm prevents changes being carried out in an incorrect sequence.

Features

The change number is written to an internal table the first time that you use a change number to change a PVS variant. The system uses this table to reproduce the sequence in which changes to PVS variants were made. This is independent of its valid-from date and the PVS variant to which the first change with the change number is made. This is necessary because not only the sequence by the valid-from date is important, but also the sequence of changes made at the point of use, in repetitive manufacturing, for example. This is why the change numbers in the PVS are evaluated by an algorithm that takes the above-mentioned table with the sequence into consideration and prevents change numbers being used in the wrong sequence due to the valid-from date.

Example Example

End of the example.

The following diagram shows the sequence algorithm

This graphic is explained in the accompanying text.

Prerequisites

You have set option 1 ( History by Sequence ) for the Explosion Type for Component Variants in Customizing for iPPE in the process step Define General iPPE Customizing .