ODS request not activating?

There is a ODS which is getting data from R/3. The flow is in 3.x. at ODS level Activate Data automatically is checked.

So requests are getting activated automatically.

Now one more datasource is added in parallel. to get data from R/3.

This is has dataflow in 7.0 using DTPs.

Now the requests from this datasource are nothing activated automatically in ODS.

What must be the reason? What is the solution to get requests from this datasource to get activated automatically?