Have u check SAP document by pressing F1 key :-?
- 1: An infotype record must be available at all times. This record may have no time gaps. You may not delete the record last stored on the database because all records of this infotype would otherwise be deleted.
- 2: Only one record may be available at one time, but time gaps are permitted.
- 3: Any number of records may be valid at one time, and time gaps are permitted.
I believe it's very clear :-? I am using T-code SM30 view V_T582A.
Regards!
Woody