(500): Internal Server Error with SAP B1 Service Layer

Try enabling the necessary firewall rules for Power BI to communicate with SAP Business One (SAP B1), follow these steps:

1. Power BI Service Endpoints:
- Power BI relies on specific endpoints for its functionality. Ensure that the following endpoints are reachable from your SAP B1 server:
- api.powerbi.com (TCP Port 443)
- \.analysis.windows.net (TCP Port 443)
- \.pbidedicated.windows.net (TCP Port 443)
- content.powerapps.com (TCP Port 443)
- datamart.fabric.microsoft.com or datamart.pbidedicated.windows.net (TCP Port 1433)
- dc.services.visualstudio.com (TCP Port 443)
- arc.msn.com (TCP Port 443, optional)
- nps.onyx.azure.net (TCP Port 443, optional)

2. Microsoft 365 Authentication and Identity:
- Power BI depends on Microsoft 365 endpoints for authentication. Ensure connectivity to the following:
- Microsoft 365 Common and Office Online URLs (N/A)

3. Portal Access:
- For general use of Power BI, allow access to:
- \.powerbi.com (TCP Port 443)

4. Gateway Administration (Preview):
- If you're using gateway administration features, allow access to:
- gatewayadminportal.azure.com (TCP Port 443)

5. Service Telemetry:
- To monitor service telemetry, allow access to:
- dc.services.visualstudio.com (TCP Port 443)

6. Additional Optional Endpoints:
- Consider allowing access to optional endpoints for informational messages and NPS surveys.