Object Type IDs 
Each object type that you translate using SAP translation tools has its own ID.
For example, the short text object type messages in ABAP systems has the ID MESS.
The two- to four-character IDs have the following uses:
You can use the IDs to access objects directly for translation in transaction SE63, that is without using a worklist. For more information, see Translating Objects Directly.
The IDs are displayed in front of each object type in the worklist. For more information, see Worklists.
The IDs are displayed when you expand the object type nodes in the statistics.
For more information, see Translation Statistics and Statistics Display.
You can see the IDs when you monitor the progress of an evaluation run.
For more information, see Evaluations and Monitoring an Evaluation Run.
Procedure
To view a complete list of the object type IDs in your translation system:
Call transaction LXE_MASTER.
On the Langs tab page, choose Object Types.
The Target Language dialog box appears.
Select a target language with a double-click.
This takes you to the Object Types dialog box.
Choose the icon with the Select Object Types quick info.
The system displays a list of all the object types in your translation system, together with their IDs.