3597137 - Message No. RS_HCPR_MODEL124: Field '1KYF_*' (Key figure) cannot be assigned to field '<characteristic technical name>' (Characteristic)

One characteristic is used in an aDSO as "Use Characteristic as Key Figure", and this aDSO is a part provider in a HCPR. '1KYF_*' (Key figure) is the key figure which is created by the system automatically for the aDSO attribute marked as "Use Characteristic as Key Figure", and it's contained in the Non-Grouped Fields of the HCPR.

If create an assignment from this '1KYF_*' (Key figure) to a target filed in the HCPR, the following error occurred when try to activate the HCPR:

Field '1KYF_*' (Key figure) cannot be assigned to field '<characteristic technical name>' (Characteristic)
Message No. RS_HCPR_MODEL124

• SAP NetWeaver 7.5
• SAP BW/4HANA 2.0
• SAP BW/4HANA 2021
• SAP BW/4HANA 2023 

customer name space, Association With, Direct Usage Of Associated Object , KBA , BW-MT-HCPR , CompositeProvider in BW Modeling Tools , Problem