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Frequently Asked Questions

What is workflow definition language in Azure Power automate?

For workflow definitions in Azure Logic Apps and Power Automate, some expressions get their values from runtime actions that might not yet exist when your workflow starts running. To reference these values or process the values in these expressions, you can use functions provided by the Workflow Definition Language .

How do I use Microsoft Flow expressions?

Microsoft Flow leverages the same Workflow Definition Language used by Azure Logic apps. For new users who are unfamiliar with the expression language, there is an inline help experience that shows how to use each expression as they build out their flow. To use an expression in your flow, first open the Add dynamic content menu.

What is expression builder in mapping data flow?

In mapping data flow, many transformation properties are entered as expressions. These expressions are composed of column values, parameters, functions, operators, and literals that evaluate to a Spark data type at run time. Mapping data flows has a dedicated experience aimed to aid you in building these expressions called the Expression Builder.

How do I set the values in the data flow activity expressions?

The parameter values are set by the calling pipeline via the Execute Data Flow activity. You have three options for setting the values in the data flow activity expressions: Use this capability to make your data flows general-purpose, flexible, and reusable. You can parameterize data flow settings and expressions with these parameters.

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