What does the 'instanceID' parameter refer to in regards to the REST API?

Environment:

All versions of Oracle Field Service (OFS)

Issue:

I don't know what the 'instanceID' parameter is referring to in regards to the REST API.

Resolution:

The 'instanceID' parameter in REST API requests are simply the company name of the environment you are intending to send the request to. For example, if your company name is 'oracle', then the instanceID for the Production environment would be 'oracle'. If you are trying to send the request to your 'oracle1.test' environment, the instanceID would be 'oracle1.test'.