SAP table TCA20 (Grouping categories for object overview versions)

SAP table TCA20 has 2 primary key fields being MANDT,CLASS.

If you're only analyzing data from a single SAP instance you may omit field MANT in your relationships as it will we the same across the entire dataset. On the other hand, if you're combining data from multiple SAP instances you need to take MANDT into account.

Field Description Data Type Length Decimals Checktable Data Element
MANDT Client CLNT 3 0 T000 MANDT
CLASS Grouping type for object overview versions CHAR 4 0 LCLAS
HINCL Name of include report for generated headings CHAR 40 0 * HINCL
LINCL Include name for generated lines CHAR 40 0 * LINCL