One of my report not send out from subscription.
I click on the report manually and report can be come out without any issue.
I login into reporting service and found out SSRS subscription cant edit/ add and report not send out.
It give the below message :
"Reporting sererver -subscription can't be created or edited because the credentials used to run the report are not stored, or if a linked report, the link is no longer valid"
I fix two item in the report
1. link to sub-report which is not available
2. data source have invalid server name, and the data source is not been use in the report. I re-point to the correct data source
After I fixed the above 2 items, email subscription working again.