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Email Alerts are not received...

In one of application, Email alerts are sent using SQL sp_send_dbmail stored procedure. Email alerts were working properly, but suddenly noticed email alerts are not received.

To troubleshoot the issue, first I checked the msdb.dbo.sysmail_event_log table using the below query.

SELECT log_id, event_type, log_date, description, process_id, mailitem_id, account_id, last_mod_date, last_mod_user
FROM
msdb.dbo.sysmail_event_log 
ORDER BY
log_date DESC

If there is any error, you should see records with the event_type value as error.
In my case there are records with event_type value as error, and the description value for those records is same as below

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2018-02-01T10:41:27). Exception Message: Cannot send mails to mail server. (The SMTP server requires a secure connection or the client was not authenticated. The server response was: Authentication required).  )

As per the error descript…

How to get the Last Month value of a Measure for a Period in MDX...

There was a requirement to show only the last month value for a particular measure, for the given period.
If the period is 2016, then it show the measure value of the 2016 Dec.
If the period is 2016 Q3, then the measure value has to be 2016 Sep.

I was able to achieve it, by creating a calculated measure using ClosingPeriod function.

Formula of the Calculated Measure is as below

(ClosingPeriod([DimDate].[Year-Quarter-Month].[Month], [DimDate].[Year-Quarter-Month].CurrentMember),[Measures].[Count])

You can test it using the below MDX Query as well.

WITH MEMBER [Measures].[LastMonthValue]
AS (ClosingPeriod([DimDate].[Year-Quarter-Month].[Month], [DimDate].[Year-Quarter-Month].CurrentMember),[Measures].[Count])

SELECT NON EMPTY { [Measures].[LastMonthValue] } ON COLUMNS
 FROM [CubeName]
WHERE STRTOSET(@Period,CONSTRAINED)

Hope this will be helpful...

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