How To Fix SMARTFORMS128 - Field name not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: SMARTFORMS - Smart Forms - Form Builder

• Message number: 128

• Message text: Field name not allowed

What causes this issue?

You have specified a field name, the syntax of which is not correct.
Fields are placeholders in texts, the value of which cannot be
determined until the form is processed. Field notation is carried out
using <ZH><(>&<)>Field name&.</>.

System Response

The operation was rejected.

How to fix this error?

Enter the correct syntax for a field in the notation <ZH>
<(>&<)>Field name& </>.

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 SMARTFORMS128 - Field name not allowed ?

  The SAP error message SMARTFORMS128: Field name not allowed typically occurs when you are trying to use a field name in a Smart Form that is either invalid or not recognized by the system. This can happen for several reasons, including:
  Causes:
  
  Invalid Field Name: The field name you are trying to use may contain special characters, spaces, or may not conform to the naming conventions required by SAP.
  Field Not Defined: The field you are trying to reference may not be defined in the context of the Smart Form or the associated data structure.
  Data Type Issues: The field may not be of a compatible data type for the operation you are trying to perform.
  Scope Issues: The field may not be accessible in the context where you are trying to use it (e.g., it may be defined in a different context or node).
  
  Solutions:
  
  Check Field Name: Ensure that the field name you are using adheres to SAP's naming conventions. It should typically start with a letter and can contain letters, numbers, and underscores.
  Verify Field Definition: Make sure that the field is defined in the data structure that is being used in the Smart Form. You can check the data dictionary (SE11) to confirm the field's existence and its properties.
  Use Correct Context: Ensure that you are referencing the field in the correct context. If the field is part of a specific node or table, make sure you are within that context when trying to access it.
  Check Data Types: Ensure that the field's data type is compatible with the operation you are trying to perform. For example, if you are trying to perform a mathematical operation, ensure the field is numeric.
  Debugging: If the issue persists, you can use the debugging tools in SAP to trace the execution and see where the error is being triggered.
  
  Related Information:
  
  Smart Forms Documentation: Refer to the official SAP documentation for Smart Forms for more details on field naming conventions and best practices.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting specific issues, as other users may have encountered similar problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SMARTFORMS (to create or modify Smart Forms) and SE11 (to view data dictionary objects).
  
  By following these steps, you should be able to identify and resolve the cause of the SMARTFORMS128 error in your SAP Smart Form.