Maintaining the Transport Subdirectory 
Procedure
The required subdirectories are
actlog , bin , data , log , buffer , sapnames , cofiles , olddata and tmp . Additional optional subdirectories are backup and serial .For
tp , the transport subdirectories must fulfill the following requirements:In UNIX systems, the owner of all these subdirectories must be a
All these subdirectories must also have read and write authorizations for the owner and the group.
In Windows NT systems, the subdirectories must have read and write authorizations for the users <SAPSID>ADM and SAPService<SAPSID> for each SAP System that is part of the transport group.
In AS/400 systems, the subdirectories and the directory