Add the following DNS names to your firewall’s allow list to avoid getting time-out errors.
PROD
| Application | Primary endpoint | IP | Secondary endpoint | IP |
| SAP Adapter for Global Tax Determination | tweadapters.taxware.net | 216.58.164.5 | tweadapters.taxware.net | 208.118.230.145 |
UAT
| Application | Primary endpoint | IP | Secondary endpoint | IP |
| SAP Adapter for Global Tax Determination | tweadaptersuat.taxware.net | 216.58.164.6 | tweadaptersuat.taxware.net | 208.118.230.188 |