3480258 - Intermittent error "statusCode: 500" when calling on-premise system from Cloud Integration to API Management

• In a scenario where an on-premise system is called (via SAP Cloud Connector) from Cloud Integration to API Management, the below error can be seen from time to time.
• In Cloud Integration monitor:
  • org.apache.camel.CamelExchangeException: Sequential processing failed for number 1. Exchange[ID-xxxxxxxxxxx-xxxxxxxxxxxxx-xxxxx-xxxx]. Caused by: [org.apache.camel.CamelExchangeException - Sequential processing failed for number 0. Exchange[ID-xxxxxxxxxxx-xxxxxxxxxxxxx-xxxxx-xxxx]. Caused by: [org.apache.camel.component.ahc.AhcOperationFailedException - HTTP operation failed invoking https://<API_MANAGEMENT_URL>:443/<API_PROXY> with statusCode: 500]], cause: org.apache.camel.component.ahc.AhcOperationFailedException: HTTP operation failed invoking <API_MANAGEMENT_URL>:443/<API_PROXY> with statusCode: 500
• In Cloud Integration system traces:
  • \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\# Response Body \#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#\#
    {"fault":{"faultstring":"Execution of ServiceCallout callAuthUrl failed. Reason: ResponseCode 500 is treated as error","detail":{"errorcode":"steps.servicecallout.ExecutionFailed"}}}|

• Cloud Integration
• SAP Integration Suite

On-premise system, SAP Cloud Connector, Cloud Integration, API Management, HTTP 500, Retry mechanism, SAP BTP, Network disruption, CamelExchangeException, AhcOperationFailedException, ServiceCallout ExecutionFailed, Cloud Integration monitor, HTTP adapters, SAP Integration Suite, Temporary network disruptions , KBA , LOD-HCI-PI-RT , Integration Runtime , OPU-API-OD-DT , Designtime , Problem