How To Fix S3258 - Only table names are permitted as node names for nodes of the type 'T'

SAP Error Message - Details

• Message type: E = Error

• Message class: S3 - Transaction for processing logical databases

• Message number: 258

• Message text: Only table names are permitted as node names for nodes of the type 'T'

What causes this issue?

With nodes of the type 'T' the name of the node must agree with the
table name. Therefore only the name of a Dictionary table is permitted
as a node name. The table name is then renamed automatically.

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

System Response

Error message

How to fix this error?

Choose a table name as node name.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message S3258 - Only table names are permitted as node names for nodes of the type 'T' ?

  The SAP error message S3258 indicates that there is an issue with the structure of a node in a table type definition. Specifically, it states that only table names are permitted as node names for nodes of the type 'T'. This error typically arises when you are working with ABAP Dictionary objects, particularly when defining structures or tables.
  Cause:
  The error occurs when you attempt to define a node in a hierarchical structure (like a table type) with a name that is not a valid table name. In ABAP, when you define a node of type 'T' (which represents a table), the name of that node must correspond to a valid table name. If you use an invalid name or a name that does not conform to the expected format, the system will throw this error.
  Solution:
  To resolve this error, you should:
  
  
  Check Node Names: Review the node names in your table type definition. Ensure that all node names of type 'T' are valid table names. They should not contain any special characters or spaces and should follow the naming conventions of SAP.
  
  
  Correct Naming: If you find any node names that do not conform to the requirements, rename them to valid table names. This typically means using alphanumeric characters and underscores, starting with a letter.
  
  
  Review Data Elements: If you are using data elements or structures that are not defined correctly, ensure that they are properly defined in the ABAP Dictionary.
  
  
  Recheck Structure Definition: If you are defining a structure that includes tables, ensure that the structure is correctly defined and that the types are appropriate for the data you are trying to represent.
  
  
  Test Changes: After making the necessary changes, activate the object and test it to ensure that the error is resolved.
  
  
  Related Information:
  
  ABAP Dictionary: Familiarize yourself with the ABAP Dictionary, as it is crucial for defining data structures, tables, and types in SAP.
  Naming Conventions: Review SAP's naming conventions for objects to avoid similar issues in the future.
  Documentation: Consult the SAP Help Portal or relevant documentation for more details on defining table types and structures in ABAP.
  
  If the issue persists after following these steps, consider seeking assistance from a colleague or SAP support, as they may provide additional insights based on the specific context of your implementation.