PRGUID is a standard SAP Table which is used to store GUIDs for WBS Element data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The PRGUID table consists of various fields, each holding specific information or linking keys about GUIDs for WBS Element data available in SAP. These include GUID (UUID in X form (binary)), PSPNR (Project definition (internal)), POSID (Work Breakdown Structure Element (WBS Element)), OBJNR (Object number)... 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. .