Your dataset should be populated before prompt ask for user to enter. One of the ways I know is 'Submit code when server is connected'. Here, you write sas code that creates dataset which is needed in dynamic prompt. Before EG show you the prompt, the required dataset would be ready and you will get the updated prompt values. Go to Tool --> Options --> SAS programs --> Submit code when server is connected Click Edit and enter your code here. I have also attached a snapshot with this reply. The only problem with this approach is - this change would be applied to your SAS EG setting, so it would run for every EG project.
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