How To Fix WS_TOOL864 - Structure &1 was changed incompatibly; structure must be reconstructed

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 864

• Message text: Structure &1 was changed incompatibly; structure must be reconstructed

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 WS_TOOL864 - Structure &1 was changed incompatibly; structure must be reconstructed ?

  Certainly! Here's a detailed explanation of the SAP error message:
  
  SAP Error Message:
  WS_TOOL864 Structure &1 was changed incompatibly; structure must be reconstructed
  
  
  Cause:
  This error occurs when a data structure (e.g., a table type, structure, or a dictionary object) in the ABAP Dictionary has been changed in a way that is incompatible with its previous definition. Such incompatible changes can include:
  
  Changing the length of a field.
  Changing the data type of a field.
  Removing or reordering fields.
  Changing the structure in a way that breaks existing references or dependent objects.
  
  When such changes happen, the runtime environment detects that the structure's current version does not match the version expected by programs or tools that use it. This leads to the incompatibility error.
  
  What does "structure must be reconstructed" mean?
  It means that all dependent objects (programs, function modules, screens, etc.) that use this structure must be recompiled or regenerated to align with the new structure definition. The system requires