TP44 is a standard SAP Table which is used to store Logical Systems data in SAP systems, such as SAP R/3, S/4HANA, depending on the version and release level.
The TP44 table consists of various fields, each holding specific information or linking keys about Logical Systems data available in SAP. These include LOGSYS (Logical system), DESTINATION (Logical Destination (Specified in Function Call))... 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. .