PSO23 is a standard SAP Table which is used to store Summary Key, Closing Posting Day data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The PSO23 table consists of various fields, each holding specific information or linking keys about Summary Key, Closing Posting Day data available in SAP. These include PSOV1 (Account key (abbreviation) for FI G/L account summarization), PSOV_ART ()... 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. .