SCOM Action Account changed- Getting Event ID 31551 and 31561 on Management Server

Cause
========
Still old sccount

Solution
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1.Log onto the SQL server that the OperationsManagerDW db is located on. Go to the dbo.ManagementGroup table.
2.Right Click and go to Edit Top 200 Rows.
3.Go to the WriterLoginName check out whether the old account is associated with this.
4.If it is, then change it to the new account