Openhub delta process

Hello guys,

I am looking for explanations about SAP BW 7.1 delta process when I use OpenHub destinations:

I extract data from a DSO to an OH destination by delta in order to treat data in a 3rd party tool (SAP Business Objects Data Services 4.2).

I receive rows marked by 0recordmode (X, null, etc.) and I found explanations about these values.

Actually, I am looking for cases which can occur : for example, I know that on an datasource, you can see your delta process in Extraction tab (ABR, AIE, etc.). Do you know where I can found which process is used in DTP which load my Openhub layer ?

Thanks in advance for your expert support