How To Fix SS027 - Data structures are incompatible

SAP Error Message - Details

• Message type: E = Error

• Message class: SS - Integration IMG - function model - SAP analyzer

• Message number: 027

• Message text: Data structures are incompatible

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 SS027 - Data structures are incompatible ?

  The SAP error message SS027, which states "Data structures are incompatible," typically occurs when there is a mismatch between the data structures expected by the system and those being provided. This can happen in various contexts, such as during data transfers, interface processing, or when working with custom programs and function modules.
  Causes:
  
  Mismatched Data Types: The data types of fields in the source and target structures do not match. For example, a field defined as a character type in one structure may be defined as a numeric type in another.
  Field Length Differences: The length of fields in the source and target structures may differ, leading to incompatibility.
  Missing Fields: One of the structures may be missing fields that are present in the other structure, causing the system to throw an error.
  Changes in Data Structures: If there have been recent changes to the data structures (e.g., in a custom program or a data model), and the changes have not been propagated correctly, this error can occur.
  Incorrect Mapping: In data transfer scenarios, if the mapping between source and target fields is incorrect, it can lead to this error.
  
  Solutions:
  
  Check Data Structure Definitions: Review the definitions of the data structures involved. Ensure that the data types, lengths, and field names match as expected.
  Adjust Field Mappings: If you are working with data transfers or interfaces, verify that the mappings between the source and target fields are correct and consistent.
  Update Custom Code: If the error arises from custom ABAP code, ensure that the code is updated to reflect any changes in the data structures.
  Use Data Dictionary Tools: Utilize transaction codes like SE11 (Data Dictionary) to inspect the structures and ensure compatibility.
  Debugging: If the error occurs during execution, use the debugger to trace the program and identify where the incompatibility arises.
  Consult Documentation: If the error is related to a specific SAP module or function, consult the relevant SAP documentation or notes for guidance on compatibility issues.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), SE37 (Function Module), and SE24 (Class Builder) can be useful for checking and modifying data structures.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to SS027.
  Community Forums: SAP Community and other forums can provide insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the SS027 error and implement a suitable solution.