How To Fix EWA304 - &1 &2 cannot be saved; no history data maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: EWA - IS-U-WA: Waste Management

• Message number: 304

• Message text: &1 &2 cannot be saved; no history data maintained

What causes this issue?

You can only save the factor if you have created at least one time
slice with a factor value for the factor.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EWA304 - &1 &2 cannot be saved; no history data maintained ?

  The SAP error message EWA304 indicates that a specific object (like a work item or a document) cannot be saved because there is no history data maintained for it. This error typically arises in the context of SAP systems that utilize the EarlyWatch Alert (EWA) or similar monitoring tools.
  Cause:
  
  Missing History Data: The primary cause of this error is that the system is trying to save a record or an entry that requires historical data, but such data is not available.
  Configuration Issues: There may be configuration settings that prevent the system from maintaining history data.
  Data Deletion: Historical data might have been deleted or not generated due to system settings or manual interventions.
  System Errors: There could be underlying system errors or inconsistencies that prevent the proper logging of historical data.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to the object in question. Ensure that history data maintenance is enabled.
  Generate History Data: If possible, try to generate the required historical data. This might involve running specific reports or transactions that create the necessary logs.
  Data Consistency Check: Perform a consistency check on the relevant data. Use transaction codes like SE11 or SE16 to inspect the database tables related to the object.
  Review Authorizations: Ensure that the user has the necessary authorizations to create or modify history data.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve the issue.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the context in which it occurs.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as ST22 (Dump Analysis), SM21 (System Log), and SLG1 (Application Log).
  Documentation: Review SAP documentation related to the specific module or functionality you are working with, as it may provide insights into history data management.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the EWA304 error and implement a suitable solution.