FMCOMBH is a standard SAP Table which is used to store Additional lines in BL for Combined Documents data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The FMCOMBH table consists of various fields, each holding specific information or linking keys about Additional lines in BL for Combined Documents data available in SAP. These include AMT_TYPE (Amount type), LINE (Current line number), TRANSAC (CO Business Transaction), VALUE_TYPE (Combined Document)... 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. .