A special lookup function in the mapper enables you to call a lookup from a mapping to determine the value to populate into a field when transferring data between applications.
To reference a lookup from a data mapping:
- Drag the source to a target to create a simple mapping.
- Click the target node to launch the Mapping Builder.
- In the Mapping Builder, click Mapping Components.
- Type lookupValue in the Find field, and click Find.
- Drag the function onto the mapping statement.
The mapper prompts you to select a previously created lookup.
- Search by lookup name.
When you select a lookup in the Lookup Tables column, you see preview data for that lookup on the right based on the connections you selected as the source and target.
- Select a lookup and click Use.
- The system automatically populates the following parameters in the lookup function:
dvmLocation
: with the lookup name you selected
srcColumn
: with the source application type
srcValue
: with the existing mapping expression
targetColumn
: with the target application type
- Enter a
defaultValue
parameter. This is the value sent to the target if the lookup function is unable to find a match for the value passed from the source.
- Click Save and Close.