VBFA is a standard SAP Table which is used to store Sales Document Flow data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The VBFA table consists of various fields, each holding specific information or linking keys about Sales Document Flow data available in SAP. These include VBELV (Preceding sales and distribution document), POSNV (Preceding item of an SD document), VBELN (Subsequent sales and distribution document), POSNN (Subsequent item of an SD document)... 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. .