TPIF3 is a standard SAP Table which is used to store Assignments: Commitment Item -> Value Category data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TPIF3 table consists of various fields, each holding specific information or linking keys about Assignments: Commitment Item -> Value Category data available in SAP. These include APPL (User component), KOKRS (Controlling Area), FIKRS (Financial Management Area), ACPOS (Value category)... 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. .