OLE DB or ODBC error: Login failed for user–Deploying BAM Activities

After you have setup a new BizTalk server and start deploying BAM Activities, in this case Microsoft.BizTalk.ESB.BAM.Exceptions.xml which has a Cube that needs to be deployed into the BAM OLAP Database, you can get this error:

To fix this error, you need to find the logon that was trying to access the BAMStarSchema database, in this case ‘NT SERVICEMSSQLServerOLAPService’ (this is the default account for OLAP in the SQL Install)

Add ‘NT ServiceMSSQLServerOLAPService’ as a SQL Logon

Give this account db_datareader for the BAMStarSchema database

Re-Run the BAM Deploy

Problem Fixed