SAP TMC4C Connections of Info Structures Table data and field list

TMC4C is a standard SAP Table which is used to store Connections of Info Structures data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.

The TMC4C table consists of various fields, each holding specific information or linking keys about Connections of Info Structures data available in SAP. These include MCINF (Name of information structure), LFNR3 (Serial number), MCINFC (Assigned information structure), SPZISC (Type of the allocated information structure)... 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. .

TMC4C table Technical Details:

Delivery Class: E - Control table, SAP and customer have separate key areas
Display/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Cannot Be Enhanced

SAP TMC4C table fields - Full list of fields found in SAP data dictionary

Looking for S/4HANA specific information? Click here to explore the details, fields and extensibility available for this table in the SAP S/4HANA version of the TMC4C table. Also check whether the table still exists or has been transformed into a CDS view as part of the HANA simplifications.

Key field

Non-key field

How do I retrieve data from SAP table TMC4C using ABAP code

The following ABAP code Example will allow you to do a basic selection on TMC4C to SELECT all data from the table
DATA: WA_TMC4C TYPE TMC4C.

SELECT SINGLE *
FROM TMC4C
INTO CORRESPONDING FIELDS OF WA_TMC4C
WHERE...

How to access SAP table TMC4C

Within an ECC or HANA version of SAP you can also view further information about TMC4C and the data within it using relevant transactions such as

SE11 (ABAP Dictionary Maintenance)
SM30 (Maintain Table Data)
SE80 (Object Navigator)
SE16 (Data Browser).