TZFO1 is a standard SAP Table which is used to store Definition of release objects data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TZFO1 table consists of various fields, each holding specific information or linking keys about Definition of release objects data available in SAP. These include REPID (ABAP Program Name), STCODE (Transaction code for display during release (DARWIN))... 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. .