VMPA is a standard SAP Table which is used to store Selection Methods for Search Help VMPA data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The VMPA table consists of various fields, each holding specific information or linking keys about Selection Methods for Search Help VMPA data available in SAP. These include PS_PSP_PNR (Work Breakdown Structure Element (WBS Element)), VBELN (Sales Document), POSNR (Sales Document Item)... 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. .