How To Fix DBOSC135 - Error while processing request; too many rows (&1) returned for structure

DBOSC135 - Overview

• Message type: E = Error

• Message class: DBOSC -

• Message number: 135

• Message text: Error while processing request; too many rows (&1) returned for structure

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.

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DBOSC135 - Details

• The SAP error message DBOSC135 indicates that a database operation has returned too many rows for a specific structure, which exceeds the expected limit. This typically occurs in scenarios where a query or a data retrieval operation is expected to return a single row or a limited number of rows, but instead, it returns a larger dataset.
  
  Cause:
  
  Query Design: The SQL query or data retrieval logic may not be properly designed, leading to an unexpected number of rows being returned.
  Data Model Issues: There may be issues with the underlying data model, such as missing or incorrect relationships between tables, which can cause a query to return more rows than intended.
  Parameter Values: The parameters used in the query might not be restrictive enough, allowing too many records to be fetched.
  
  Configuration Issues: In some cases, the configuration of the data structure or the way the data is being processed may not align with