How To Fix FL301 - & is not in ABAP Dictionary and is not an ABAP internal type

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 301

• Message text: & is not in ABAP Dictionary and is not an ABAP internal type

What causes this issue?

You specified a reference type which is neither defined in the ABAP/4
Dictionary nor is it an ABAP/4 internal type.

System Response

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

How to fix this error?

Check that you have entered the name correctly or use a permissible
type I, C, F, D, T, X, P, N, TABLE.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL301 - & is not in ABAP Dictionary and is not an ABAP internal type ?

  The SAP error message FL301 indicates that a field is not defined in the ABAP Dictionary and is not recognized as an ABAP internal type. This error typically arises when you are trying to use a field in your ABAP program that has not been properly defined or declared.
  Causes of FL301 Error
  
  
  Field Not Defined in Data Dictionary: The field you are trying to use does not exist in the ABAP Dictionary (DDIC). This could be due to a typo in the field name or because the field has not been created in the DDIC.
  
  
  Incorrect Data Type: The field may not be recognized as a valid ABAP internal type. This can happen if you are trying to use a field that is not a standard data type or if it has not been declared in the program.
  
  
  Scope Issues: The field might be defined in a different scope (e.g., within a specific function module or class) and is not accessible in the current context.
  
  
  Typographical Errors: Simple typographical errors in the field name can lead to this error.
  
  
  Solutions to FL301 Error
  
  
  Check Field Definition: Verify that the field you are trying to use is defined in the ABAP Dictionary. You can do this by using transaction SE11 (Data Dictionary) to search for the field.
  
  
  Declare the Field: If the field is not defined in the DDIC, you may need to declare it in your ABAP program. For example:
  DATA: lv_field TYPE your_data_type.
  
  
  Correct Typographical Errors: Double-check the spelling of the field name in your code to ensure there are no typos.
  
  
  Use Correct Data Types: Ensure that you are using valid ABAP data types. If you are using a custom type, make sure it is defined in the DDIC.
  
  
  Check Scope: If the field is defined in a different context (like a class or function module), ensure that you are accessing it correctly. You may need to use the appropriate method or access it through an instance of the class.
  
  
  Consult Documentation: If you are unsure about the field or data type, refer to the SAP documentation or consult with a colleague who has experience with the specific module or program.
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SE11: Data Dictionary
  SE80: Object Navigator
  SE37: Function Module
  SE24: Class Builder
  
  
  
  ABAP Data Types: Familiarize yourself with the standard ABAP data types and structures to avoid using undefined types.
  
  
  Debugging: Use the ABAP debugger to step through your code and identify where the error occurs. This can help you pinpoint the exact line causing the issue.
  
  
  By following these steps, you should be able to resolve the FL301 error and ensure that your ABAP program runs smoothly.