Here are the KBAs we have followed:
2088150 - Troubleshooting Login Issues for SAP SuccessFactors HXM Suite:
- IP Restriction: Error - Your machine is not authorized to access this system:
Your company is using IP restriction to prevent unauthorized access to the SuccessFactors Application and you are trying to access the system from an IP address that has not currently been authorized. Please log a case with SuccessFactors Support to have the new IP address added if this is an IP address that your company has authorized for access.
2089414 - System: How to restrict access to SuccessFactors by IP address - IP Restriction Management
According to what was said above, we are moving this case to Solution Provided. Please, be aware that the Solution Provided is the same as Customer Action, you have 30 days to reopen if you have questions. We are only choosing Solution Provided because at this moment there is no action from SAP.