How To Fix RSDS181 - Caution when loading without using PSA

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 181

• Message text: Caution when loading without using PSA

What causes this issue?

If you load data without using the PSA, the direct access extractor is
used. Certain restrictions are to be observed.

System Response

Warning. The system continues to execute the function.

How to fix this error?

Note the restrictions <DS:DE.RSDS_NOPSA>described here</> when you use
this function. In the source system, check whether the named
prerequisites are met.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS181 - Caution when loading without using PSA ?

  The SAP error message RSDS181 indicates a caution when loading data into a Data Warehouse without using the Persistent Staging Area (PSA). This warning typically arises in the context of SAP BW (Business Warehouse) data loading processes, particularly when using DataSources to load data directly into InfoProviders without first storing it in the PSA.
  Cause:
  The primary cause of the RSDS181 warning is that loading data directly into InfoProviders (like InfoCubes or DataStore Objects) without utilizing the PSA can lead to several issues, including:
  
  Data Integrity Risks: If there are errors during the data load, it may be difficult to identify and correct them since there is no intermediate storage (PSA) to review the raw data.
  Performance Issues: Direct loading can sometimes lead to performance bottlenecks, especially if the data volume is large.
  Lack of Error Handling: Without the PSA, you lose the ability to perform detailed error handling and data validation before the data is committed to the target InfoProvider.
  
  Solution:
  To address the RSDS181 warning, consider the following solutions:
  
  Use PSA: The best practice is to load data into the PSA first. This allows you to review, validate, and correct any issues before the data is moved to the final target InfoProvider.
  Review Data Load Process: If you must load data directly into the InfoProvider, ensure that you have robust error handling and validation processes in place to manage potential issues.
  Monitor Data Loads: Implement monitoring tools or processes to keep track of data loads and quickly identify any discrepancies or errors.
  Documentation and Training: Ensure that users involved in data loading are aware of the implications of bypassing the PSA and are trained on best practices for data loading.
  
  Related Information:
  
  PSA (Persistent Staging Area): A temporary storage area in SAP BW where data is stored before it is transformed and loaded into InfoProviders. It allows for data validation and error handling.
  DataSource: A source from which data is extracted, which can be from various systems (like SAP ERP, flat files, etc.).
  InfoProvider: A data structure in SAP BW that stores data for reporting and analysis, such as InfoCubes or DataStore Objects.
  Error Handling: Implementing error handling mechanisms is crucial for maintaining data quality and integrity.
  
  By following these guidelines, you can mitigate the risks associated with the RSDS181 warning and ensure a more reliable data loading process in your SAP BW environment.