How To Fix CNV_PE518 - No structure link for field &1 found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 518

• Message text: No structure link for field &1 found

What causes this issue?

Parameter link exists for a field &V1&, however there is no parameter
link for the corresponding structure &V2&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE518 - No structure link for field &1 found ?

  The SAP error message CNV_PE518 ("No structure link for field &1 found") typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that the system is unable to find a corresponding structure link for a specific field in the data model.
  Cause:
  
  Missing Structure Definition: The field referenced in the error message does not have a defined structure link in the data model. This can happen if the field is not properly mapped or if the structure has not been defined in the target system.
  Incorrect Configuration: The configuration settings for the data migration process may be incorrect, leading to the system not recognizing the field.
  Changes in Data Model: If there have been changes in the source or target data model after the initial setup, it may lead to discrepancies that result in this error.
  Incompatibility: The field may not be compatible with the target structure due to data type mismatches or other structural issues.
  
  Solution:
  
  Check Field Mapping: Review the field mapping configuration in the data migration tool. Ensure that the field in question is correctly mapped to a corresponding field in the target structure.
  Define Structure Links: If the field is missing a structure link, you may need to define it in the target system. This can involve creating or modifying the data structure to include the necessary field.
  Update Data Model: If there have been changes to the data model, ensure that all relevant structures and mappings are updated accordingly.
  Consult Documentation: Refer to the SAP documentation for the specific data migration tool you are using. There may be specific guidelines or troubleshooting steps related to this error.
  Check for Notes and Patches: Look for any SAP Notes or patches that may address this issue. Sometimes, SAP releases updates that fix known issues related to data migration.
  Testing: After making changes, perform a test migration to ensure that the error has been resolved.
  
  Related Information:
  
  Transaction Codes: Depending on the tool you are using, you may need to use specific transaction codes to access the data migration settings (e.g., LTMOM for LTMC).
  SAP Notes: Search the SAP Support Portal for relevant notes that may provide additional insights or solutions for this error.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.