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OLAP issue with MANY TO MANY mapping

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Hi All,We have a requirement where we have to pull specific measures & associated dimensions data from an OLAP to SQL tables. The source cube has almost 80 % of MANY TO MANY mappings.When we pull this data to SQL tables either by writing MDX or DMX dimension level metric values are not matching with what OLAP browsing is providing. When we pull this measure with only regular dimensions metric values with all dimensions exactly match. The mismatch issue comes when we have at least 1 MANY TO MANY dimension part of MDX or DMX query. Further to this we have pulled all intermediate facts & dimensions involved in MANY TO MANY mapping into SQL tables & tried a number of JOINS but the metric values haven’t match up.We are very close on delivery dates & are not sure on any resolution. Could you please guide us on next steps here.Thanks is advance.

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