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How To Fix SWDP_WB_TOOL028 - & is not allowed as a parameter name


SAP Error Message - Details

  • Message type: E = Error

  • Message class: SWDP_WB_TOOL - Web Dynpro: Messages for Workbench Tools

  • Message number: 028

  • Message text: & is not allowed as a parameter name

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  • 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 SWDP_WB_TOOL028 - & is not allowed as a parameter name ?

    The SAP error message SWDP_WB_TOOL028 indicates that a parameter name you are trying to use is not allowed. This typically occurs in the context of SAP Web Dynpro development, where certain naming conventions and restrictions apply to parameter names.

    Cause:

    The error is usually caused by one of the following reasons:

    1. Invalid Characters: The parameter name may contain invalid characters or spaces. SAP has specific rules regarding what characters can be used in parameter names.
    2. Reserved Keywords: The parameter name may be a reserved keyword in the SAP environment, which cannot be used as a parameter name.
    3. Length Restrictions: The parameter name may exceed the maximum length allowed for parameter names in SAP.
    4. Naming Conventions: The parameter name may not adhere to the naming conventions set by your organization or SAP standards.

    Solution:

    To resolve the error, you can take the following steps:

    1. Check Naming Conventions: Ensure that the parameter name follows the naming conventions. Typically, parameter names should start with a letter and can include letters, numbers, and underscores.
    2. Avoid Reserved Keywords: Make sure that the parameter name is not a reserved keyword in SAP. You can refer to the SAP documentation for a list of reserved keywords.
    3. Use Valid Characters: Ensure that the parameter name does not contain any special characters or spaces. Stick to alphanumeric characters and underscores.
    4. Shorten the Name: If the parameter name is too long, try to shorten it while still keeping it meaningful.
    5. Consult Documentation: Refer to the SAP Web Dynpro documentation for specific guidelines on naming parameters.

    Related Information:

    • SAP Notes: Check SAP Notes for any specific issues related to this error message. SAP Notes often provide insights into known issues and their resolutions.
    • SAP Community: Engage with the SAP Community forums where other developers may have encountered similar issues and can provide solutions or workarounds.
    • Web Dynpro Documentation: Review the official SAP Web Dynpro documentation for best practices and guidelines on parameter naming and other development practices.

    By following these steps, you should be able to resolve the SWDP_WB_TOOL028 error and successfully use the desired parameter name in your SAP Web Dynpro application.

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