How To Fix FDT_TRANSPORT018 - Illegal method call; IS_VALUE is not compatible with IV_TABNAME

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_TRANSPORT - Formula & Derivation Tool: Transport

• Message number: 018

• Message text: Illegal method call; IS_VALUE is not compatible with IV_TABNAME

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 FDT_TRANSPORT018 - Illegal method call; IS_VALUE is not compatible with IV_TABNAME ?

  The SAP error message FDT_TRANSPORT018 indicates that there is an issue with the method call in the context of the Field Data Tool (FDT) transport. Specifically, the error states that the IS_VALUE parameter is not compatible with the IV_TABNAME parameter. This typically occurs when there is a mismatch in the expected data types or structures between these parameters.
  Cause
  The error can be caused by several factors:
  
  Data Type Mismatch: The data type of the IS_VALUE parameter does not match the expected type for the IV_TABNAME parameter. This could happen if the structure or type of the data being passed is incorrect.
  Incorrect Configuration: There may be an issue with the configuration of the FDT transport settings, leading to improper handling of the data.
  Custom Code Issues: If there is custom code involved in the transport process, it may not be handling the parameters correctly, leading to this error.
  Version Compatibility: If there are version differences between the systems involved in the transport, it may lead to incompatibilities in the data structures.
  
  Solution
  To resolve the error, you can take the following steps:
  
  Check Data Types: Verify that the data types of IS_VALUE and IV_TABNAME are compatible. Ensure that the data being passed matches the expected structure.
  Review Configuration: Check the configuration settings for the FDT transport. Ensure that all settings are correctly defined and that there are no discrepancies.
  Debug Custom Code: If there is custom code involved, debug it to ensure that the parameters are being passed correctly. Look for any type conversions or assignments that may be causing the issue.
  Consult Documentation: Refer to the SAP documentation for the Field Data Tool and transport processes to ensure that you are following the correct procedures.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve compatibility issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance. Provide them with detailed information about the error and the context in which it occurs.
  
  Related Information
  
  Field Data Tool (FDT): A tool used in SAP for managing field data and its transport between systems.
  Transport Management System (TMS): The system used to manage the transport of objects between SAP systems.
  ABAP Development: Understanding ABAP programming can be helpful, especially if custom code is involved in the transport process.
  
  By following these steps, you should be able to identify and resolve the issue causing the FDT_TRANSPORT018 error.