patch https://api.arcadia.com/plug/sites/
Each site has 12 fields where you can define values associated. These fields are city, country, facilityType, postalCode, region, siteCode, siteName, siteNumber, subRegion, state, streetLine1, and streetLine2. Custom data allows you to organize Arcadia data and tie them back to records in your system.
This endpoint supports Sandbox Mode.