SAP COML_HIERARCHY Screen Structure: Hierarchy Data Table data and field list

COML_HIERARCHY 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 "Screen Structure: Hierarchy Data" 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_COML_HIERARCHY TYPE COML_HIERARCHY.

The COML_HIERARCHY table consists of various fields, each holding specific information or linking keys about Screen Structure: Hierarchy Data data available in SAP. These include HIERARCHY_TEXT (Category Hierarchy Description), CAT_AUTONUMBER (Automatic Number Assignment), SCHEME_GUID (Numbering Scheme GUID), SCHEME_ID (Numbering Scheme)... 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. .

COML_HIERARCHY structure Technical Details:

Delivery Class:
Display/Maintenance via tcode SM30: Display/Maintenance Allowed but with Restrictions
SAP enhancement categories: Cannot Be Enhanced

SAP COML_HIERARCHY 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 COML_HIERARCHY 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
HIERARCHY_ID	Category Hierarchy ID	COMT_HIERARCHY_ID	CHAR	10			COM_HIERARCHY_ID		COM_HIER
HIERARCHY_TEXT	Category Hierarchy Description	COMT_HIERARCHY_TEXT	CHAR	40			TEXT40
CAT_AUTONUMBER	Automatic Number Assignment	COMT_CAT_AUTONUMBER	CHAR	1			COM_BOOLEAN
SCHEME_GUID	Numbering Scheme GUID	COMT_SCHEME_GUID	RAW	16			SYSUUID
SCHEME_ID	Numbering Scheme	COMT_SCHEME_ID	CHAR	10			COM_SCHEME_ID
STANDARD_SCHEMA	Standard Schema Type	SCHEMA_TYPE	CHAR	10	BBP_CT_SCMTYPE		COM_SCHEMA_TYPE
SCHEMA_DESC	Standard Schema Type Description	COM_SCHEMA_DESCRIPTION	CHAR	40			TEXT40
EXT_MAINT	Extended Maintenance Is Possible for the Hierarchy	COMT_EXTENDED_MAINTENANCE	CHAR	1			COM_BOOLEAN

Key field

Non-key field

< COML_DYN_PRCAT_FRAG_REL - Category - Set Type Assignment (Table Control) COML_HIERARCHY_TC - Structure for Displaying Hierarchies with Description on TC >

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

As COML_HIERARCHY 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 COML_HIERARCHY as there is no data to select.

How to access SAP table COML_HIERARCHY

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

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