put https://sandbox1-api.unit21.com/v1//instruments//update
Updates an instrument's information using the instrument_id from your platform.
Updating an instrument has no required fields. You MAY send any subset of the fields that the instruments/create endpoint accepts.
Placeholder instruments cannot be updated.
This endpoint requires the instrument_id which is a unique ID created by your organization to identify the instrument. The org_name is your Unit21 appointed organization name such as google or acme.
Note that you can also update an instrument using an upsert through /instruments/create.
Follow the links for more information: