FMPSOISK is a standard SAP Table which is used to store Assgmt of Vendor to Subledger Preprocessing Proc./Rev. Type data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The FMPSOISK table consists of various fields, each holding specific information or linking keys about Assgmt of Vendor to Subledger Preprocessing Proc./Rev. Type data available in SAP. These include LIFNR (Account Number of Vendor or Creditor), PSOIS (Subledger acct preprocessing procedure), PSOEA (Revnue Type)... 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. .