We are not able to generate MBO file for IUS exchange for 7th Aug 2017 file. Attaching first 1000 Ric's taken from the Instruments as below.
ius-mbo-20170807.txt
From historical search result, the RICs you used for IUS exchange doesn't support MarketByOrder domain, so there is no MBO file generated. The RICs supports only MarketPrice and MarketByPrice domain.
You need to confirm with content team if this IUS exchange supports MarketByOrder.
{ "Identifier": "1CC95067961", "IdentifierType": "Ric", "Source": "", "Key": "VjF8MHgzMDAwMDAwMDAwMDAwMDAwfDB4MzAwMDAwMDAwMDAwMDAwMHx8fHx8fHwxQ0M5NTA2Nzk2MXw", "Description": "Historical Instrument", "InstrumentType": "Unknown", "Status": "Valid", "DomainCode": "6", "FirstDate": "2017-04-24T00:00:00.000Z", "LastDate": "2017-08-18T00:00:00.000Z", "History": []},{ "Identifier": "1CC95067961", "IdentifierType": "Ric", "Source": "", "Key": "VjF8MHgzMDAwMDAwMDAwMDAwMDAwfDB4MzAwMDAwMDAwMDAwMDAwMHx8fHx8fHwxQ0M5NTA2Nzk2MXw", "Description": "Historical Instrument", "InstrumentType": "Unknown", "Status": "Valid", "DomainCode": "8", "FirstDate": "2017-04-24T00:00:00.000Z", "LastDate": "2017-08-18T00:00:00.000Z", "History": []}