PSO40 is a standard SAP Table which is used to store Rounding Units data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The PSO40 table consists of various fields, each holding specific information or linking keys about Rounding Units data available in SAP. These include BUKFM (Company Code Group FM), WAERS (Currency Key), PSORE (Rounding unit for 'Generate due dates')... 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. .