TTEM_USAGE is a standard SAP Table which is used to store [Not used] Mapping: Usage Indicator data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TTEM_USAGE table consists of various fields, each holding specific information or linking keys about [Not used] Mapping: Usage Indicator data available in SAP. These include SYSTEMID2 (TTE Calling System Identifier 2), USAGE_EX (External Usage), USAGE_INT (Product Usage Indicator)... 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. .