PROOB is a standard SAP Table which is used to store Original Batch for Production Order data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The PROOB table consists of various fields, each holding specific information or linking keys about Original Batch for Production Order data available in SAP. These include AUFNR (Order Number), POSNR (Order Item Number), AJAHR (Year in Which Original Batch was Created), WERKS (Plant from Original Batch)... 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. .