Hi @Christopher Jack ,
1.Could you please share the example of the environment variable?
2.Could you please share where do you use the environment variable?
3.Please check the environment when run the ssis package from SSIS Catalog in SQL Agent Job.
We can refer to the following links:
a.Parameterizing Connections and Values at Runtime Using SSIS Environment Variables
b.catalog.create_environment_variable (SSISDB Database)
Best Regards,
Mona
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