FMMIGDOC is a standard SAP Table which is used to store Migrated Documents data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The FMMIGDOC table consists of various fields, each holding specific information or linking keys about Migrated Documents data available in SAP. These include DOCNR (Entry Document Number), BELNR (Document number from budget allocation & structure planning), SVERS (Budget version), TVERS (Budget version)... 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. .