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2126300 - Composite key changes not preserved during update of the LDM – SAP PD 16.5


  • Generate a LDM from a CDM. In the LDM, change the attributes of a composite key via the relationship join. This change results in the deletion of an attribute from the entity.
  • In the CDM, add new attributes to the entity and then generate them to the LDM using the preserve modifications option. The first update to the LDM will provide the expected results. However, if the LDM is updated a second time, the modification previously made in the LDM is ignored and the change is undone. Thus, the previously deleted attribute is recreated in the LDM.



  • SAP PowerDesigner (PD) 16.5
  • SAP PowerAMC 16.5


SAP PowerDesigner 16.5 ; Sybase PowerAMC 16.5


CR778646, 778646, CR#778646, logical, conceptual, data, model , KBA , cr , 778646 , BC-SYB-PD , PowerDesigner , BC-SYB-PD-AMC , Power AMC , Problem

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