TKB2C is a standard SAP Pooled Table which is used to store Default Rules for Posting Rules data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TKB2C table consists of various fields, each holding specific information or linking keys about Default Rules for Posting Rules data available in SAP. These include DFREG (Default Rule), OBART (Object type of settlement sender), KONTY (Account assignment category), LFDNR (Sequence number of distribution 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. .