How To Fix DBMAN877 - Reading &1 explicity from an aggregate (&2) is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: DBMAN - Data Manager Message Class

• Message number: 877

• Message text: Reading &1 explicity from an aggregate (&2) is not permitted

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 DBMAN877 - Reading &1 explicity from an aggregate (&2) is not permitted ?

  The SAP error message DBMAN877 indicates that there is an attempt to read data explicitly from an aggregate table, which is not allowed in the context of the operation being performed. This error typically arises in scenarios involving SAP BW (Business Warehouse) or SAP HANA, where aggregate tables are used to optimize query performance by pre-aggregating data.
  Cause:
  The error occurs when:
  
  A query or a data extraction process tries to access data directly from an aggregate table instead of going through the appropriate data source or InfoProvider.
  The system is configured to prevent direct access to aggregate tables to ensure data integrity and consistency.
  
  Solution:
  To resolve the DBMAN877 error, consider the following steps:
  
  
  Check Query Design: Review the query that is causing the error. Ensure that it is designed to access the correct InfoProvider (e.g., InfoCube, DataStore Object) rather than directly querying the aggregate.
  
  
  Use Aggregates Appropriately: If you need to use aggregates, ensure that your queries are set up to utilize them correctly. Aggregates should be accessed through the standard query mechanisms provided by SAP BW.
  
  
  Modify Data Extraction Logic: If you are using custom ABAP code or a data extraction process, ensure that it does not attempt to read directly from the aggregate tables. Instead, it should read from the base tables or the appropriate InfoProviders.
  
  
  Check Authorization: Ensure that the user has the necessary authorizations to access the InfoProviders and aggregates. Sometimes, authorization issues can lead to unexpected errors.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP BW or HANA you are using. There may be specific guidelines or best practices for handling aggregates.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the root cause, consider reaching out to SAP support for assistance. They may provide insights based on the specific configuration and version of your SAP system.
  
  
  Related Information:
  
  SAP BW Aggregates: Aggregates in SAP BW are used to improve query performance by pre-calculating and storing summarized data.
  InfoProviders: In SAP BW, InfoProviders are the data sources from which queries can be executed. They include InfoCubes, DataStore Objects, and MultiProviders.
  Performance Optimization: Understanding how to effectively use aggregates can significantly enhance the performance of reporting and data retrieval processes in SAP BW.
  
  By following these steps, you should be able to address the DBMAN877 error and ensure that your queries and data extraction processes function correctly within the SAP environment.