VPKUSERDATA is a standard SAP Table which is used to store Sales Pricing: User-Specific Data (GUI) data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The VPKUSERDATA table consists of various fields, each holding specific information or linking keys about Sales Pricing: User-Specific Data (GUI) data available in SAP. These include UNAME (User Name), APPL (Application), CALLER (Character field of length 6), START_VIEW (Initial view)... 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. .