I was trying to generate one csv file dynamically for each recipient in AC server for the group of recipients.
After that tried to deliver the email to the group of 700+ people and attached this generated csv files. Then I face the following error for 70+ people out of 700+ ..
"Cannot open file '<file name>' with read access (errno=2, No such file or directory)"
But actually csv files are there for this 70+ people also. When the delivery job retried again after 1 hour later it was successfully go through for this 70+ people. Any idea why the error happen on first attempt? The file size is not more than 1 MB for each file.
My understanding says that this sort of error is either attributed to file not being present in the directory or some scripting within the Workflow Activity which is causing some issues with initial set of Recipients and works fine thereafter.
Further insights would require deeper investigation, I would request you to open a case with Support Team and this will get right direction there.