If the connector logs in to the SAP application successfully, but the connector's log in the SAP application is empty:
To check the number ranges, go to transaction SNRO and enter /CWLD/LOG in the Number Range Object field. Click the Number Ranges button, click the Display Intervals button, and note the number range object number. Open the connector log and note the number of the first entry. If this number is higher than the number range object number, then the log entry number in the connector log needs to be modified to be one number higher. For more information, see Verifying number ranges for transport objects..