How To Fix WW646 - This was just a test run. Nothing has been changed on the database.


SAP Error Message - Details

  • Message type: E = Error

  • Message class: WW - Material group master maintenance

  • Message number: 646

  • Message text: This was just a test run. Nothing has been changed on the database.

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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 WW646 - This was just a test run. Nothing has been changed on the database. ?

    The SAP error message WW646 indicates that the operation you attempted to perform was executed in test mode, meaning that no actual changes were made to the database. This is a common scenario in SAP when you are running a transaction or program that has a test mode option, which allows you to simulate the process without affecting the actual data.

    Cause:

    1. Test Run Mode: The most common cause of this error is that the transaction or program was executed in test mode. This is often indicated by a parameter or checkbox that specifies whether the run should be a test or an actual execution.
    2. Configuration Settings: Some transactions have default settings that may be configured to run in test mode.
    3. User Input: The user may have inadvertently selected a test run option or not provided the necessary input to switch to an actual run.

    Solution:

    1. Check Execution Mode: Review the parameters or options you selected when executing the transaction. Look for any options that indicate "Test Run" or "Simulate" and ensure they are unchecked or set to "Actual Run."
    2. Re-run the Transaction: After confirming that the test mode is disabled, re-run the transaction to perform the actual changes.
    3. Review Documentation: If you are unsure about how to change the execution mode, refer to the SAP documentation or help files related to the specific transaction you are using.
    4. Consult with Colleagues or Support: If you are still having trouble, consider reaching out to a colleague or SAP support for assistance.

    Related Information:

    • Transaction Codes: Some common transaction codes that may produce this message include those related to data updates, such as mass data changes or batch processing.
    • Testing in SAP: It is a best practice to test changes in a development or quality assurance environment before applying them to production. This helps to ensure that the changes will work as expected without causing issues.
    • SAP Notes: Check SAP Notes for any specific issues or updates related to the transaction you are using, as there may be known issues or patches available.

    By following these steps, you should be able to resolve the WW646 error and successfully execute your transaction.

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