SAP Basis Tech Supports

Symptom
The number of dialog processes used to transfer data to the BW system has changed.
Other terms
OLTP, extractor, data extraction, DataSource, Service API, SAPI, ROIDOCPRMS, SMQS, QRFC
Reason and Prerequisites
As of BW Service API 7.0, the transfer of data was switched to the default tRFC scheduler (represented in transaction SMQS). This change has been activated as the default setting as of BW Service API 7.0 in combination with a BW system as of SAP NetWeaver 2004s. This note is not relevant when you connect BW systems supporting Release BW 3.*.
(See also the release note under
http://help.sap.com/saphelp_nw04s/helpdata/en/13/083f420e09b26be10000000a155106/frameset.htm).
Solution
You must set the number of dialog processes in transaction SMQS.
You can use the report
RSA1_TRFC_OPTION_SET
to activate and deactivate this ‘default 7.0′ scheduling.