How To Fix NHCF_CX_CORE004 - An error occurred during call of proxy &1

SAP Error Message - Details

• Message type: E = Error

• Message class: NHCF_CX_CORE - Messages for service enablement layer in HCF

• Message number: 004

• Message text: An error occurred during call of proxy &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message NHCF_CX_CORE004 - An error occurred during call of proxy &1 ?

  The SAP error message NHCF_CX_CORE004, which states "An error occurred during call of proxy &1," typically indicates that there was an issue when trying to call a proxy service in SAP. This error can arise from various underlying causes, and addressing it usually involves a few steps to diagnose and resolve the issue.
  Possible Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the external service or system that the proxy is trying to call.
  Configuration Errors: The proxy might not be correctly configured in the SAP system or the external system.
  Authorization Issues: The user or service account may not have the necessary permissions to execute the proxy call.
  Service Availability: The external service that the proxy is trying to call may be down or not reachable.
  Data Issues: The data being sent to the proxy might be incorrect or not in the expected format, leading to a failure in processing.
  Timeouts: The call to the proxy may be timing out due to long processing times or network delays.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the external service. You can use tools like ping or telnet to test connectivity.
  Review Proxy Configuration: Verify that the proxy is correctly configured in both the SAP system and the external system. Check the endpoint URL, authentication methods, and any required headers.
  Check Authorizations: Ensure that the user or service account has the necessary authorizations to call the proxy. This may involve checking roles and permissions in the SAP system.
  Monitor External Service: Check the status of the external service to ensure it is up and running. If it is down, you may need to wait until it is restored.
  Validate Input Data: Review the data being sent to the proxy for correctness. Ensure that it adheres to the expected format and contains all required fields.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings for the proxy call in the SAP system.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SOAMANAGER to manage web service configurations and monitor service calls.
  Logs and Traces: Check the application logs (transaction SLG1) and the system logs (transaction SM21) for more detailed error messages that can provide additional context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error message.
  Debugging: If you have access, consider debugging the proxy call to identify where the failure occurs.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.