If the schema of your input file does not match the fields expected by the MRA, you must create a map file to correlate the input data with the MRA.
To map fields
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In the Input Data Selection pane, select With Map and click the Map Fields icon.
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In the Map Fields window, shown in the figure below, you can either:
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Browse to open an existing map file.
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Use the window to create a map file by clicking in the Input Fields column and selecting a field to map to the Matcher fields, as illustrated in the figure below. You do not need to map every field.
Figure 1. Mapping Fields
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Optionally, click the Save or Save As icons to save the map file.
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Click OK. When you perform a match, both field names will be identified in the header row of the Match Results pane.