How To Fix R9O056 - Returns 1 for single values, 0 for aggregated values

SAP Error Message - Details

• Message type: E = Error

• Message class: R9O - Long Texts for Operators in the Formula Builder

• Message number: 056

• Message text: Returns 1 for single values, 0 for aggregated values

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message R9O056 - Returns 1 for single values, 0 for aggregated values ?

  The SAP error message R9O056, which states "Returns 1 for single values, 0 for aggregated values," typically occurs in the context of reporting or data extraction processes within SAP systems, particularly when dealing with queries or data models that involve aggregation.
  
  Cause:
  This error usually arises when there is a mismatch in the expected data type or structure between the query and the underlying data model. Specifically, it indicates that the system is trying to return a single value (which should return 1) but is instead encountering an aggregated value (which should return 0). This can happen due to:
  
  Incorrect Query Design: The query may be designed to expect a single value but is actually aggregating data.
  Data Model Issues: The underlying data model may not be set up correctly to handle the expected output.
  Filter Conditions: Filters applied in the query may lead to unexpected results, causing the system to aggregate data instead of