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First Cluster Analysis (DMCA1) 
Technical name: 0P_DMCA1
This variable is specific to the first Cluster Analysis in the InfoSet Clustering Migration Analysis (0DMCIS01), which refers to the InfoObject Cluster Analysis (0DM_CLUSID).
It allows you to select the first Cluster Analysis for Clustering Migration Analysis (0DMCIS01_Q0001). An SAP exit is provided, which initially fills this variable with the most recent Clustering Analysis. For this purpose, the date and time of data extraction is used.