COMM_IL_PROREF_H is a standard SAP Table which is used to store Historical Data of Relationship Type Reference Product data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The COMM_IL_PROREF_H table consists of various fields, each holding specific information or linking keys about Historical Data of Relationship Type Reference Product data available in SAP. These include CLIENT (Client), ILGUID (Internal, Unique ID of a Relationship), VALID_TO (Valid To (Time Stamp)), SOURCEGUID (Internal ID for Source in a Relationship)... See below for full list along with technical details, documentation, text table, check tables, foreign key relationships, conversion routines, relevant tcodes and example ABAP select code etc. .