N/task Module
SearchTask.addInboundDependency()
Method Description: Adds a scheduled script task (task.ScheduledScriptTask) or map/reduce script task (task.MapReduceScriptTask) to the search task as a dependent script. Dependent scripts are processed automatically when the search task is complete. For more information, see SuiteCloud Processors. You can add only scheduled scripts or map/reduce scripts as dependent scripts to asynchronous search tasks. Other script types are not supported. When you use this method to add a dependent script, the script is considered an inbound dependency of the search task. The added script depends on the search task. For example, if you add a scheduled script task to a search task as a dependent script, the scheduled script depends on the search task. Because addInboundDependency() is called on the search task, any dependent scripts that you add are considered inbound dependencies.
Returns: void
Supported Script Types: Server scripts For more information, see SuiteScript 2.0 Script Types.
Governance: None
Module: N/task Module
Since: 2018.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=SearchTask.addInboundDependency()

// Code Example 1

// Add additional code

//...

var scheduledScript = task.create({

    taskType: task.TaskType.SCHEDULED_SCRIPT

});

// Set the properties of the scheduled script task

scheduledScript.scriptId = 'customscript_as_ftr_ss';

//...



var asyncTask = task.create({

   taskType: task.TaskType.SEARCH

});

// Set the properties of the search task

asyncTask.savedSearchId = 'customsearch35';

//...



asyncTask.addInboundDependency(scheduledScript);



var asyncTaskId = asyncTask.submit();

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_1530711128.html