How To Fix RTC_COMM059 - Composite selection cannot be assigned to a composite selection

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_COMM -

• Message number: 059

• Message text: Composite selection cannot be assigned to a composite selection

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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Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_COMM059 - Composite selection cannot be assigned to a composite selection ?

  The SAP error message RTC_COMM059, which states "Composite selection cannot be assigned to a composite selection," typically occurs in the context of SAP Analytics Cloud (SAC) or SAP BusinessObjects when dealing with composite models or data sources. This error indicates that there is an issue with how composite selections are being handled in your data model or report.
  Cause:
  
  Incorrect Composite Selection: The error usually arises when you attempt to assign a composite selection (a selection that combines multiple data sources or dimensions) to another composite selection. This is not allowed in SAP as it can lead to ambiguity in data retrieval.
  Model Configuration Issues: There may be issues with how the composite model is configured, such as incorrect relationships or hierarchies between the data sources.
  Data Source Compatibility: The data sources being used may not be compatible with composite selections, leading to this error.
  
  Solution:
  
  Review Composite Selections: Check the composite selections you are trying to use. Ensure that you are not trying to assign one composite selection to another. Instead, use individual selections or ensure that the selections are compatible.
  Adjust Model Configuration: Go through the configuration of your composite model. Ensure that the relationships between the data sources are correctly defined and that there are no circular references or conflicts.
  Use Simple Selections: If possible, simplify your selections by using individual data sources or dimensions instead of composite selections.
  Check Documentation: Refer to the official SAP documentation for guidelines on using composite models and selections. This can provide insights into best practices and limitations.
  Testing: After making adjustments, test the model or report to ensure that the error is resolved and that the data is being retrieved correctly.
  
  Related Information:
  
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues. You can find discussions and solutions that may be relevant to your situation.
  SAP Notes: Check for any SAP Notes related to RTC_COMM059 or composite selections. SAP Notes often provide fixes or workarounds for known issues.
  Training and Tutorials: Consider looking for training materials or tutorials on SAP Analytics Cloud or BusinessObjects that cover composite models and selections in detail.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.