How To Fix RSCRT178 - No open PSA request found for DataSource &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSCRT - Near-To-Real-Time Messages

• Message number: 178

• Message text: No open PSA request found for DataSource &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.

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 RSCRT178 - No open PSA request found for DataSource &1 ?

  The SAP error message RSCRT178 indicates that there is no open PSA (Persistent Staging Area) request found for the specified DataSource. This error typically occurs in the context of data extraction processes in SAP BW (Business Warehouse) when trying to load data from a source system into the BW system.
  Cause:
  
  No Data Loaded: The most common cause is that no data has been loaded into the PSA for the specified DataSource. This can happen if the extraction process has not been executed or if it failed.
  Data Request Status: The PSA request may have been processed and closed, meaning there are no open requests available for further processing.
  Incorrect DataSource: The DataSource specified may not be correctly configured or may not exist in the system.
  Extraction Issues: There may be issues with the extraction process itself, such as connection problems with the source system or incorrect extraction settings.
  
  Solution:
  
  Check Data Load: Verify if the data load process for the DataSource has been executed. You can do this by checking the extraction monitor (transaction RSA1) to see if there are any successful data loads.
  Re-extract Data: If no data has been loaded, initiate the data extraction process again. Ensure that the extraction settings are correct and that the source system is accessible.
  Monitor Data Requests: Use transaction RSA1 to monitor the status of data requests. Look for any requests that are in a failed state and address any issues that may have caused the failure.
  Check DataSource Configuration: Ensure that the DataSource is correctly configured in the BW system. Check the settings in transaction RSA1 under the DataSource section.
  Review Logs: Check the logs for any errors or warnings that may provide more context on why the PSA request is not available. You can use transaction RSMO to view the data load logs.
  DataSource Activation: If the DataSource has been recently created or modified, ensure that it has been activated properly.
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench, used for monitoring and managing data loads.
  RSMO: Monitor Data Loads, used to check the status of data loads and view logs.
  
  
  PSA: The Persistent Staging Area is a temporary storage area in BW where data is stored before it is transformed and loaded into InfoProviders.
  DataSource: A DataSource is a structure that defines how data is extracted from a source system into BW.
  
  By following these steps, you should be able to resolve the RSCRT178 error and successfully load data into the PSA for the specified DataSource.