How To Fix RTC_POSTING028 - Dimension assignment fields do not exist under model &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_POSTING -

• Message number: 028

• Message text: Dimension assignment fields do not exist under model &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_POSTING028 - Dimension assignment fields do not exist under model &1 ?

  The SAP error message RTC_POSTING028 indicates that there is an issue with dimension assignment fields in a specific model. This error typically occurs in the context of SAP Analytics Cloud (SAC) or SAP Business Planning and Consolidation (BPC) when trying to post data or perform a planning function.
  Cause:
  The error message "Dimension assignment fields do not exist under model &1" suggests that the system is unable to find the required dimension assignment fields for the specified model. This can happen due to several reasons:
  
  Missing Dimensions: The model may not have the necessary dimensions defined or activated.
  Incorrect Model Configuration: The model might be incorrectly configured, leading to missing or misaligned dimension assignments.
  Data Source Issues: The data source being used may not be properly linked to the model, causing the dimensions to be unavailable.
  User Permissions: The user may not have the necessary permissions to access the dimensions or the model.
  
  Solution:
  To resolve the RTC_POSTING028 error, you can take the following steps:
  
  
  Check Model Configuration:
  
  Go to the model settings in SAP Analytics Cloud or BPC.
  Ensure that all required dimensions are defined and correctly configured.
  
  
  
  Verify Dimension Assignments:
  
  Check if the dimension assignment fields are correctly mapped in the model.
  Ensure that the dimensions you are trying to use are included in the model.
  
  
  
  Review Data Source:
  
  Ensure that the data source is correctly linked to the model.
  If you are using a live data connection, verify that the connection is active and functioning properly.
  
  
  
  User Permissions:
  
  Check the user roles and permissions to ensure that the user has access to the model and its dimensions.
  If necessary, update the user permissions to include access to the required dimensions.
  
  
  
  Test with Sample Data:
  
  Try posting data with a smaller set of sample data to see if the issue persists.
  This can help isolate whether the problem is with specific data or a broader configuration issue.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for your specific version of SAC or BPC for any additional troubleshooting steps or configuration guidelines.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  SAP Analytics Cloud (SAC): A cloud-based solution for business intelligence, planning, and predictive analytics.
  SAP Business Planning and Consolidation (BPC): A solution for planning, budgeting, forecasting, and financial consolidation.
  Dimension Assignment: Refers to the mapping of data fields to specific dimensions in a model, which is crucial for accurate data analysis and reporting.
  
  By following these steps, you should be able to identify and resolve the cause of the RTC_POSTING028 error in your SAP environment.