Hi @Jefferson Andrade ,
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Here is a similar thread: SSAS Processing Error with no additional details
You can take following steps:
- Create a SQL Server login account
- Create a user for the login on the required database
- Add to the db_datareader role
- Use this account for the data source connection in Analysis Services
- Redeploy the model
If this does not solve your problem, you can add more details here.
Best regards,
Seeya
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