How To Fix TK158 - Table & is a data structure

SAP Error Message - Details

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 158

• Message text: Table & is a data structure

What causes this issue?

Table "&V1&" is only a data structure and not a table stored in the
database. No data can therefore be transported.

System Response

The system rejects the entry.

How to fix this error?

Specify the table containing the data that should be transported.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TK158 - Table & is a data structure ?

  The SAP error message TK158 indicates that a specific table is being treated as a data structure, which typically means that the system is expecting a table but has encountered a data structure instead. This can occur in various contexts, such as when working with ABAP programs, function modules, or data dictionary objects.
  Cause:
  
  Data Structure vs. Table: The error arises when a data structure is used in a context where a table is expected. For example, if you are trying to pass a data structure to a function module that requires a table as an input parameter.
  Incorrect Data Type: The data type of the variable being passed does not match the expected type in the function or method signature.
  Misconfiguration: There may be a misconfiguration in the data dictionary or in the program logic that leads to this mismatch.
  
  Solution:
  
  Check Data Types: Verify the data types of the variables being used. Ensure that you are passing a table type where a table is expected and not a structure.
  Modify the Code: If you are using a data structure, consider changing it to a table type if the logic requires a table. You can convert a structure to a table by creating an internal table of the same type.
  Review Function Module/Method Signatures: Check the documentation or definition of the function module or method you are calling to ensure you are passing the correct types.
  Debugging: Use the debugger to trace the execution and identify where the data structure is being incorrectly passed as a table.
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the differences between structures and tables in ABAP. Structures are single records, while tables are collections of records.
  SAP Documentation: Refer to SAP's official documentation for more details on data types and error handling in ABAP.
  Community Forums: Consider checking SAP community forums or Stack Overflow for similar issues and solutions shared by other developers.
  
  By addressing the mismatch between data structures and tables, you should be able to resolve the TK158 error effectively.