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Hello @xds-support,
To extract all instruments from InstrumentList by list name, please use the two-step approach described in detail in this thread.
Does it work for you, do you run into an issue?
Alternatively, you can obtain the listId via itemId:
{ {protocol}}{ {host}}{ {api}}Extractions/InstrumentListItems('itemId')/InstrumentList
and then do the same step two as discussed in thread
{ {protocol}}{ {host}}{ {api}}Extractions/InstrumentLists('{ {listId}}')/ThomsonReuters.Dss.Api.Extractions.InstrumentListGetAllInstruments
Is this what you are looking to do?