N2DO is a standard SAP Table which is used to store IS-H*MED: Table of doc. category to org. unit assignments data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The N2DO table consists of various fields, each holding specific information or linking keys about IS-H*MED: Table of doc. category to org. unit assignments data available in SAP. These include EINRI (Institution), ORGID (Identification Key of Organizational Unit), DTID (Document Category ID), DTVERS (Version Number)... 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. .