How To Fix HTTP_HEADER001 - &1 entries found, &2 duplicate entries not shown

HTTP_HEADER001 - Overview

• Message type: E = Error

• Message class: HTTP_HEADER - HTTP Header Framework

• Message number: 001

• Message text: &1 entries found, &2 duplicate entries not shown

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message HTTP_HEADER001 - &1 entries found, &2 duplicate entries not shown ?

  The SAP error message HTTP_HEADER001 indicates that there are duplicate entries in the HTTP header of a request. This can occur in various scenarios, such as when making HTTP calls from SAP systems to external services or APIs. The message typically states that a certain number of entries were found, but some duplicate entries were not shown.
  
  Cause:
  
  Duplicate Headers: The most common cause of this error is that the HTTP request being sent contains duplicate header fields. For example, if the same header (like Authorization, Content-Type, etc.) is included multiple times, it can trigger this error.
  
  Configuration Issues: Sometimes, the configuration of the HTTP client or the way headers are being set in the code can lead to duplicates.
  Middleware or Proxy Issues: If there is middleware or a proxy server involved in the communication, it might be adding headers that are already present in the request.
  
  
  Solution:
  
  Check HTTP Headers: Review the code or