TP019 is a standard SAP Table which is used to store Business Partner: Key for Blank Fields data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TP019 table consists of various fields, each holding specific information or linking keys about Business Partner: Key for Blank Fields data available in SAP. These include GRP_TYP (Group Category), GRP (Group Key)... 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. .