How To Fix RSDHA811 - Start time of raw data sequence is lower than 1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 811

• Message text: Start time of raw data sequence is lower than 1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA811 - Start time of raw data sequence is lower than 1 ?

  The SAP error message RSDHA811, which states "Start time of raw data sequence is lower than 1," typically occurs in the context of data extraction or data loading processes in SAP BW (Business Warehouse). This error indicates that there is an issue with the time-related data being processed, specifically that the start time of a raw data sequence is not valid.
  Cause:
  
  Invalid Time Data: The error usually arises when the time data being processed is either missing, incorrectly formatted, or falls outside the expected range. For example, if the time is represented in a format that does not conform to the expected standards, it may be interpreted as lower than 1.
  Data Source Issues: There may be issues with the data source from which the data is being extracted. This could include problems with the underlying database or issues with the data extraction logic.
  Configuration Errors: Incorrect configuration in the data flow or data model can lead to this error, especially if the time characteristics are not set up properly.
  
  Solution:
  
  Check Data Source: Verify the data source from which the data is being extracted. Ensure that the time-related fields are populated correctly and that there are no missing or null values.
  Validate Time Format: Ensure that the time data is in the correct format and adheres to the expected standards. If necessary, adjust the data transformation logic to handle the time data correctly.
  Review Data Flow Configuration: Check the configuration of the data flow in SAP BW. Ensure that the time characteristics are correctly defined and that there are no discrepancies in the data model.
  Data Cleansing: If the data contains invalid entries, consider implementing data cleansing processes to remove or correct these entries before loading them into the data warehouse.
  Debugging: If the issue persists, consider using debugging tools within SAP BW to trace the data flow and identify where the invalid time data is being introduced.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on troubleshooting.
  Documentation: Review SAP BW documentation related to data extraction and loading processes, particularly sections that cover time characteristics and data modeling.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the RSDHA811 error and implement a solution to resolve it.