Status record for custom outbound IDOC

Hi Experts,

I am writing code for custom outbound idoc.

I am passing IDOC_DATA AND IDOC_CONTROL to Master_idoc_distribute.

However I don't know where and what IDOC_STATUS is to be passed.

I will be thankful for kindly guiding how Idoc_Status is to be coaded and to which parameter

of MAster_idoc_distribute Idoc_Status is to be passed.

Thanks

Sanjay