How To Fix FUNC_ADT017 - Parameter &1 has an unallowed name

SAP Error Message - Details

• Message type: E = Error

• Message class: FUNC_ADT -

• Message number: 017

• Message text: Parameter &1 has an unallowed name

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 FUNC_ADT017 - Parameter &1 has an unallowed name ?

  The SAP error message FUNC_ADT017, which states "Parameter &1 has an unallowed name," typically occurs in the context of ABAP development, particularly when defining parameters for function modules, methods, or other callable objects. This error indicates that the name of the parameter you are trying to use does not conform to the naming conventions or restrictions set by the SAP system.
  Cause:
  
  Invalid Naming Convention: The parameter name may contain invalid characters or may not follow the naming conventions defined by SAP. For example, parameter names should not start with a number, contain special characters, or be too long.
  Reserved Keywords: The parameter name might be a reserved keyword in ABAP or SAP, which cannot be used as a parameter name.
  Prefix/Suffix Issues: Some naming conventions require specific prefixes or suffixes for parameters, especially in certain contexts (like interface parameters).
  
  Solution:
  
  Rename the Parameter: Change the name of the parameter to comply with SAP's naming conventions. Ensure that it starts with a letter, does not contain special characters, and is not a reserved keyword.
  Check Naming Conventions: Refer to the SAP documentation or guidelines for naming conventions in ABAP. Ensure that your parameter names are meaningful and follow the established standards.
  Use Descriptive Names: Instead of using generic names, use descriptive names that reflect the purpose of the parameter, which can also help avoid conflicts with reserved keywords.
  Review the Context: If the parameter is part of a method or function module, ensure that it adheres to the specific naming rules applicable to that context.
  
  Related Information:
  
  SAP Documentation: Check the official SAP documentation for guidelines on naming conventions in ABAP.
  ABAP Development Guidelines: Familiarize yourself with the best practices for ABAP development, which often include naming conventions.
  Error Handling: If you encounter this error frequently, consider implementing a naming convention checklist in your development process to avoid similar issues in the future.
  
  By following these steps, you should be able to resolve the FUNC_ADT017 error and successfully define your parameters in SAP.