MPOS is a standard SAP Table which is used to store Maintenance item data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The MPOS table consists of various fields, each holding specific information or linking keys about Maintenance item data available in SAP. These include WAPOS (Maintenance item), WARPL (Maintenance Plan), WSTRA (Maintenance strategy), WPPOS (Item in the maintenance plan)... 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. .