No authority to load data from source

Dear Experts,

I am facing an issue where if the end user tries to get to load transaction data from Cube, he is getting an error message:

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I have applied the solution as described in note no: 1613620 i.e. I have assigned NetWeaver authority object S_RS_ICUBE (ZCOCUBEM)

  But still user is facing the same issue.

Regards,

Rahul