TTOOL01 is a standard SAP Table which is used to store Test Parameter(s) data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TTOOL01 table consists of various fields, each holding specific information or linking keys about Test Parameter(s) data available in SAP. These include SYUSER (User Name), TYPE (Version Number Component), PARAMTYP (Parameters for Test Tool), PARAM (Comment)... 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. .