How To Fix FDT_EXPRESSIONS520 - Error while reading metadata of function &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 520

• Message text: Error while reading metadata of function &1

What causes this issue?

The system has tried to access the metadata of formula function '&v1&'.
However, the data could not be found. This situation can occur with
custom formula functions that were present in the system by the time
when the formula expression was created but are not available in the
system you are currently accessing.

System Response

The object cannot be activated.

How to fix this error?

Depending on the type of scenario you are working on, choose one of the
following alternatives:
If the formula function shall be used in a Decision Service Management
scenario that is deployed to a managed system, make sure that the
formula function is available in the managed system.
If the formula function shall be used in a local BRFplus scenario, make
sure that the formula function is available in the local system.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS520 - Error while reading metadata of function &1 ?

  The SAP error message FDT_EXPRESSIONS520 indicates that there is an issue with reading the metadata of a function in the context of SAP's Flexible Data Import (FDI) or similar functionalities. This error typically arises when the system is unable to retrieve the necessary metadata for a specific function, which can be due to various reasons.
  Causes:
  
  Missing Function Definition: The function might not be defined in the system or could be missing from the relevant package.
  Authorization Issues: The user executing the function may not have the necessary authorizations to access the metadata.
  Transport Issues: If the function was recently transported from another system, there might be inconsistencies or missing objects.
  System Configuration: There could be configuration issues in the system that prevent the proper reading of metadata.
  Corrupted Metadata: The metadata for the function could be corrupted or improperly configured.
  
  Solutions:
  
  Check Function Definition: Verify that the function is correctly defined in the system. You can do this by checking the relevant transaction codes (like SE37 for function modules).
  Review Authorizations: Ensure that the user has the necessary authorizations to access the function and its metadata. You can check this using transaction SU53 or by reviewing the user's roles and authorizations.
  Transport Consistency: If the function was recently transported, check the transport logs for any errors and ensure that all related objects were transported correctly.
  System Configuration: Review the system configuration settings related to the function and ensure that everything is set up correctly.
  Check for Corruption: If you suspect that the metadata is corrupted, you may need to regenerate or reconfigure the function. This might involve re-importing the function or restoring it from a backup if available.
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  Related Information:
  
  Transaction Codes: SE37 (Function Module), SE80 (Object Navigator), SU53 (Authorization Check), ST22 (Dump Analysis).
  SAP Notes: Search the SAP Support Portal for notes related to FDT_EXPRESSIONS520 or similar error messages.
  Documentation: Review the official SAP documentation for Flexible Data Import and related functionalities to understand the expected configurations and requirements.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.