How To Fix CFD_RUNTIME026 - Assigning target structure from service interface &1 operation &2 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_RUNTIME - Custom Fields: Runtime Data

• Message number: 026

• Message text: Assigning target structure from service interface &1 operation &2 failed

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 CFD_RUNTIME026 - Assigning target structure from service interface &1 operation &2 failed ?

  The SAP error message CFD_RUNTIME026 indicates that there was a failure in assigning a target structure from a service interface during the execution of an operation. This error typically occurs in the context of SAP Process Orchestration (PO) or SAP Cloud Platform Integration (CPI) when dealing with message mappings or service interfaces.
  Causes:
  
  Mismatch in Data Types: The structure of the source message does not match the expected structure of the target message. This can happen if the data types or the number of fields are different.
  Missing Fields: Required fields in the target structure may not be populated or may be missing from the source message.
  Incorrect Mapping: The mapping configuration may be incorrect, leading to an inability to assign values from the source to the target structure.
  Versioning Issues: If there are changes in the service interface or the data structure, and the mappings are not updated accordingly, this error can occur.
  Runtime Issues: There may be issues at runtime, such as null values or unexpected data formats that prevent successful assignment.
  
  Solutions:
  
  Check Data Mapping: Review the mapping configuration to ensure that all fields are correctly mapped from the source to the target structure. Ensure that the data types are compatible.
  Validate Source Data: Ensure that the source message contains all the required fields and that they are populated with valid data.
  Update Mappings: If there have been changes to the service interface or data structures, update the mappings accordingly to reflect these changes.
  Error Handling: Implement error handling in your integration flow to manage unexpected data formats or null values gracefully.
  Testing: Perform thorough testing with various data sets to ensure that the mappings work as expected under different scenarios.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Process Orchestration or Cloud Platform Integration for detailed information on message mappings and service interfaces.
  SAP Community: Engage with the SAP Community forums to find similar issues faced by other users and potential solutions.
  Debugging Tools: Utilize debugging tools available in SAP PO or CPI to trace the message flow and identify where the assignment is failing.
  
  By addressing the above causes and implementing the suggested solutions, you should be able to resolve the CFD_RUNTIME026 error effectively.