Hi @Melvin, Sylvia (NIH/NIEHS) [C],
Not clear about your meaning of finding the shared datasource.
However, in your situation, your requirement is modifying the SSRS report in production environment.
You could try with below method:
Create a new shared datasource which has the same name with your previous shared datasource and publish it to your report server.
And then upload your report to the report server as well.
After that, you could open your report on the report server and edit with Report Builder.
Regards,
Zoe Hui
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