Search Result Limits
Search results are limited to 1,000 records when you execute SuiteScript searches using the N/search Module. For information about working with SuiteScript searches in NetSuite, see the help topic N/search Module.
Note that if you load an existing saved search using search.load(options), and then call Search.run() to return a result set of search.ResultSet objects, you may get up to 4,000 results returned. For more information, see the help topic ResultSet.each(callback).