How To Fix GW013 - Unknown opcode; &1

GW013 - Overview

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 013

• Message text: Unknown opcode; &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 GW013 - Unknown opcode; &1 ?

  The SAP error message GW013 "Unknown opcode; &1" typically occurs in the context of SAP Gateway services, particularly when there is an issue with the communication between the SAP system and the client (such as an application or a web service). The "opcode" refers to an operation code that the system does not recognize, which can happen for several reasons.
  Causes:
  
  Incorrect Service Registration: The service might not be properly registered in the SAP Gateway.
  Version Mismatch: There could be a mismatch between the client and server versions, leading to unrecognized opcodes.
  Network Issues: Problems in the network can lead to incomplete or corrupted requests.
  Custom Development Issues: If there are custom OData services or enhancements, they might not be implemented correctly.
  Authorization Issues: The user might not have the necessary authorizations to access the service, leading to unexpected behavior.
  
  Solutions:
  
  
  Check Service Registration:
  
  Use transaction code /IWFND/MAINT_SERVICE to check if the service is correctly registered and activated.
  Ensure that