CMS_SEC_CL_MST is a standard SAP Table which is used to store Class master data in external system for every ISIN number data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The CMS_SEC_CL_MST table consists of various fields, each holding specific information or linking keys about Class master data in external system for every ISIN number data available in SAP. These include ISIN (Unique identification number for every position), SHORT_NAME (Short name of securities ISIN), SEC_POS_TYPE (Securities Classification Type), ISSUE_SOURCE (Name of Source which has Issued the Securities Position)... 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. .