MODACT is a standard SAP Table which is used to store Modifications data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The MODACT table consists of various fields, each holding specific information or linking keys about Modifications data available in SAP. These include TYP (Component type), MEMBER (Enhancement), DEVCLASS (Package), KORRNUM (Name of the locked correction)... 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. .