How To Fix C0844 - - ==> Data request type is changed from "simple" to "repeated"

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 844

• Message text: - ==> Data request type is changed from "simple" to "repeated"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message C0844 - - ==> Data request type is changed from "simple" to "repeated" ?

  The SAP error message C0844, which states "Data request type is changed from 'simple' to 'repeated'," typically occurs in the context of data extraction or reporting, particularly when using SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This message indicates that the system has detected a change in the type of data request being processed.
  Cause:
  
  
  Data Request Type Change: The error usually arises when the system attempts to process a data request that was initially classified as a "simple" request but is now being treated as a "repeated" request. This can happen due to various reasons, such as:
  
  Changes in the data model or query definition.
  Modifications in the underlying data source or InfoProvider.
  Issues with the data extraction process, such as inconsistencies in the data flow.
  
  
  
  Query Execution Context: If a query is executed in a context where the data request type is expected to be simple (e.g., a single execution), but the system detects that it needs to fetch data repeatedly (e.g., due to aggregations or multiple selections), this error can occur.
  
  
  Solution:
  
  
  Check Query Definition: Review the query definition in the Query Designer. Ensure that the settings for the data request type are appropriate for the intended use case. Look for any filters, variables, or aggregations that might cause the request to change type.
  
  
  Data Source Consistency: Verify the consistency of the data source or InfoProvider. Ensure that there are no discrepancies in the data model that could lead to this type of error.
  
  
  Rebuild or Refresh the Query: Sometimes, simply rebuilding or refreshing the query can resolve the issue. This can involve re-saving the query or refreshing the data in the InfoProvider.
  
  
  Check for Updates or Notes: Look for any SAP Notes or updates related to this error message. SAP frequently releases patches and updates that may address known issues.
  
  
  Consult SAP Documentation: Refer to the official SAP documentation for more detailed information on handling data requests and troubleshooting related errors.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  
  Related Information:
  
  SAP BW/BI Documentation: Familiarize yourself with the documentation related to data extraction and query execution in SAP BW/BI.
  Performance Considerations: Understand how data request types can impact performance, especially in large datasets or complex queries.
  User Forums and Communities: Engage with SAP user communities or forums where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to diagnose and resolve the C0844 error in your SAP environment.