In SAP back-end system the newly created AIF custom interface fails to display log in transaction /AIF/ERR. This is because the application log sub object is not created in the system.
For example: In transaction /AIF/CUST -> Interface Development -> Define Interfaces, a newly created interface IC0029 belonging to namespace ZHR.
Step 1: Go to transaction SLG0.
Step 2: Select the entry “/AIF/LOG” and double-click on “Sub-objects”.
Step 3: Go to edit mode and create a new entry for interface IC0029 along with its namespace and Save.
An entry for IC0029 gets created in SLG0.