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# Workflow: Create a Mapping with the Transform Message UI

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

Create a DataWeave mapping in Anypoint Studio by defining the input and output structures, mapping
elements graphically, and previewing the result.

1.  [Define Input and Output Structure of a Transformation](https://docs.mulesoft.com/studio/input-output-structure-transformation-studio-task)
    Provide expected input and required output structures.

2.  [Graphically Construct a Mapping](https://docs.mulesoft.com/studio/graphically-construct-mapping-studio-task) Drag elements of
    the input and drop them onto elements of the output. You can also include fixed values and
    functions to build out the output.

3.  [Preview the Output of a Transformation](https://docs.mulesoft.com/studio/preview-transformation-output-studio-task) Verify that
    the transformation produces the expected output.

## See Also

- [Transform Message Component](https://docs.mulesoft.com/studio/transform-message-component-concept-studio)

- [DataWeave Language](https://docs.mulesoft.com/mule-runtime/latest/dataweave)