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SQL Timeout error

Hi,

we have one production database which is 700 GB.
Through Microsoft dynamics jobs were running and connecting to these dbs. This job is scheduled at 9pm every night. The job will run for 30 min after it stops executing. In the dynamics logs we able to see below error.

the following sql error was unexpected: execution timeout expired. The timeout period elapsed prior to completion of the opeartion or the server is not responding.\program returned error database connectivity.

I dont see disconenctivity in sql server logs. or anykind of timeoput error message in the db logs. But in application dynamics logs we see the above error message.

I enabled sql server browser,remote time out setting to 0 in sql server connectivity properties. but still the issue same. some days the job runs with any issue. But some days this error comes frequently.
I am not into dynamics. Please can anyone suggest me what else i can see in the SQL db aspect. any blocking or deadlock happening during the time timeout error in application?

anything else i need to check in sql db?

Thanks,
Jo

Check if you see any blocks(sp_who2) during the specified time.