PSO26 is a standard SAP Table which is used to store Summarization Keys and Accounts data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The PSO26 table consists of various fields, each holding specific information or linking keys about Summarization Keys and Accounts data available in SAP. These include PSOV1 (Account key (abbreviation) for FI G/L account summarization), BUKRS (Company Code), SAKNR (G/L Account Number), TABTYPE (Type of Account in Day-End Closing)... 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. .