Hi @romelrobles, I've sent a request to some of our internal developers to assist on this. My first instinct would be to start with a lookup that lists companies to get the company ID (some integer) before attempting to import, but if the company doesn't already exist, I don't see an option to create it within the API.
Assuming you have the company name value in your Google Sheet data, a potential solution would be to create a static lookup table for your HTTP body on your import. Using this, you can then set up the table look for the company name value from your source data which will then convert it to the proper company ID that Revnue expects: