SAP MDST_MISSING_KEY Structure for Missing IDs in Key Mapping Table data and field list

MDST_MISSING_KEY is a standard SAP Structure so does not store data like a database table does. It can be used to define the fields of other actual tables or to process "Structure for Missing IDs in Key Mapping" Information within sap ABAP programs.

This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately.

i.e. DATA: wa_MDST_MISSING_KEY TYPE MDST_MISSING_KEY.

The MDST_MISSING_KEY table consists of various fields, each holding specific information or linking keys about Structure for Missing IDs in Key Mapping data available in SAP. These include SCHEME_ID (UKM: CCT: Identifier Schema ID)... 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. .

MDST_MISSING_KEY structure Technical Details:

Delivery Class:
Display/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Can be enhanced (character-type)


SAP MDST_MISSING_KEY structure 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 MDST_MISSING_KEY table. Also check whether the table still exists or has been transformed into a CDS view as part of the HANA simplifications.
Field Description Data Element Data Type length (Dec) Check table Conversion Routine Domain Name MemoryID SHLP
OBJECTTYPESynchronization Object MDS_CTRL_OBJECTCHAR10Assigned to domainMDS_CTRL_OBJECT
SCHEME_IDUKM: CCT: Identifier Schema ID UKM_E_CCT_ID_S_IDCHAR60

Key field Non-key field



How do I retrieve data from SAP structure MDST_MISSING_KEY using ABAP code?

As MDST_MISSING_KEY is a database structure and not a table it does not store any data in the SAP data dictionary. The ABAP SELECT statement is therefore not appropriate and can not be performed on MDST_MISSING_KEY as there is no data to select.

How to access SAP table MDST_MISSING_KEY

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

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