Examine Interface Data 
Procedure
The Index Tables Overview report gives an overview about the number of messages and the number of errors that exist for each interface of the SAP Application Interface Framework. The report can be executed using the Index Table Overview transaction (/AIF/IDXTBL).
In the selection screen of the Index Table Overview transaction, you can select the namespace, interface name and interface version, for the selected user. If those fields are left blank, all interfaces that exist are selected. In addition, you can decide if only error messages are to be counted or if all existing messages are to be counted.
Example
An interface administrator runs the report to check if the message number for each interface is within the expected range. The administrator identifies an unusual high number of messages for one interface and decides to do the following:
Checks that data archiving is set up for the interface
Ensures that performance is still good in the error handling
Runs a performance report
Checks technical attributes of the corresponding single index table in order to see if it is optimized for such a large number of messages