Using the SharePoint 2013 REST API,
Can I get more than one column from the lookup column by using the
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The REST API and OData request parameters can be used to request additional information from a lookup field. As an example, An Employee list with a Department lookup field. If we need to get the employee name and id as well as the department name and id, we can use this GET request:
This gets the employee( DepartmentId, Name, and Id). We expand the Department look up field and read the department name (Department/Name). The requirement is to expand the lookup list and prefix every field with the list name.
More information can be found at:
hope it helps.