The RESTful APis for CR are highly limited as compared to webi. Also, note that only CR for Enterprise is supported with the RESful APIs. For more details re. CR see:
http://help.sap.com/businessobject/product_guides/boexir4/en/xi4sp6_cr_restful_ws_en.pdf
Rumor has it that BI Platform 4.2 will have a bit more for CR...
- Ludek
Senior Support Engineer AGS Product
Support, Global Support Center Canada
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