Trying to update an obfect field via SFAPI, for example "location_obj", is not working.
Tipical scenario: integration with SF using ERP (this integration uses only SFAPI)
SAP SuccessFactors Recruiting Management
This is a limitation, SFAPI does not support FO/GO (Foundation Object / Generic Object)
We recomand to use an integration that works with ODATA API instead.
Via ODATA it is possible to update object fields.
Link to ODATA API implementation guide:
SFAPI, ERP, OBJECT , KBA , LOD-SF-RCM-INT , Integration Center & Intelligent Services , Problem