put https://sandbox1-api.unit21.com/v1//entities//add-instruments
The
unit21_id
field is being deprecated for this endpoint after September 30, 2023. Requests made usingunit21_id
in the path will fail.entity_id
should be used instead. More information.
Associate an entity with an array of instruments.
Specify the instrument_id
of the instrument when associating instruments.
Placeholder entities cannot be updated.
If we do not find any instruments with a corresponding instrument_id
in our system, we will create a placeholder for it.
Instrument details can then be supplemented through the /instruments/create
or /instruments/update
endpoints.