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How To Fix SWDP_WB_TOOL521 - Invalid action type &1 for action &2


SAP Error Message - Details

  • Message type: E = Error

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

  • Message number: 521

  • Message text: Invalid action type &1 for action &2

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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_TOOL521 - Invalid action type &1 for action &2 ?

    The SAP error message SWDP_WB_TOOL521 indicates that there is an invalid action type specified for a particular action in the context of the SAP Web Dynpro application development environment. This error typically arises when there is a mismatch or misconfiguration in the action types defined in the Web Dynpro component.

    Cause:

    1. Invalid Action Type: The action type specified in the Web Dynpro component is not recognized or is incorrectly defined.
    2. Configuration Issues: There may be issues in the configuration of the Web Dynpro application, such as missing or incorrect entries in the action definitions.
    3. Development Errors: Errors in the development of the Web Dynpro application, such as typos or incorrect references to actions.

    Solution:

    1. Check Action Definitions: Review the action definitions in the Web Dynpro component. Ensure that the action type specified is valid and correctly defined.
    2. Correct Action Type: If the action type is incorrect, update it to a valid type. Common action types include "navigation", "method call", etc.
    3. Rebuild the Application: After making changes, rebuild the Web Dynpro application to ensure that all changes are applied.
    4. Check for Typos: Look for any typographical errors in the action names or types that may be causing the issue.
    5. Consult Documentation: Refer to the SAP documentation for Web Dynpro to ensure that you are using the correct action types and configurations.

    Related Information:

    • Web Dynpro Documentation: SAP provides extensive documentation on Web Dynpro development, which can be helpful in understanding the correct usage of action types.
    • SAP Community: Engaging with the SAP Community can provide insights and solutions from other developers who may have encountered similar issues.
    • SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.

    If the issue persists after following these steps, consider reaching out to SAP support for further assistance.

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