BAPI_LAYOUT_MODULES 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 "Layout Modules for Assortment Conversion Program" 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_BAPI_LAYOUT_MODULES TYPE BAPI_LAYOUT_MODULES.
The BAPI_LAYOUT_MODULES table consists of various fields, each holding specific information or linking keys about Layout Modules for Assortment Conversion Program data available in SAP. These include LAYMOD_DESC (Layout module description), LAYMOD_VER (Layout Module Version), LM_DATE_FR (Validity start date of a layout module version), LM_DATE_TO (Validity end date of a layout module 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. .