TSTDEV is a standard SAP Table which is used to store Expediting Standard Event data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TSTDEV table consists of various fields, each holding specific information or linking keys about Expediting Standard Event data available in SAP. These include EXPOBJ (Progress Tracking Object Indicator), EVENT (Progress Tracking Event), SEQUENCE (Rank Within a Sort Sequence), USX_BAS (User Exit Baseline is Active)... 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. .