Global parameters are now generally available in Azure Data Factory. Global parameters are constants across a data factory that can be consumed by a pipeline in any expression. They are useful when you have multiple pipelines with identical parameter names and values.
Creation and management of global parameters is done in the management hub.
In any pipeline expression or dynamic content, global parameters can be referenced by pipeline().globalParameters.<parameterName>.
When promoting a data factory using the continuous integration and deployment process (CI/CD), you can override these parameters in each environment.