Adding a standard function to a map
To add a standard function to a map, use the Add a Function dialog, which is accessible in the map’s Functions column.
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Create or open a map.
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Click
Add a function to the map in the Functions column.
The Add a Function dialog opens.
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Select a category and a function type, then click OK.
If you select a Lookup, Connector or Custom Scripting function type, a dialog opens in which you must configure it. The dialog looks different, depending on the function type you chose.
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Configure the lookup, connector or custom scripting function, then click OK.
The Configure Defaults dialog opens. The dialog looks different, depending on the function type you chose.

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Enter default values and select a caching option if desired. Click OK.
A box containing the function and default values appears in the Functions column.
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Drag and drop fields from your source profile into your functions inputs.
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Drag and drop fields from your function outputs to your destination profile.

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Click Save.