TEMRT is a standard SAP Table which is used to store IS-U Mig.: Conversion rules (definition of ABAP statements) data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TEMRT table consists of various fields, each holding specific information or linking keys about IS-U Mig.: Conversion rules (definition of ABAP statements) data available in SAP. These include OBJECT (Migration Object), INPSTRUCT (Largest possible transfer structure (SAP)), FIELD (Field name for transfer structure), ZLNUM (Line number of conversion rule)... 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. .