How To Fix RSRV391 - Dimension &1 is a line item dimension. No conversion takes place

RSRV391 - Overview

• Message type: E = Error

• Message class: RSRV -

• Message number: 391

• Message text: Dimension &1 is a line item dimension. No conversion takes place

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRV391 - Dimension &1 is a line item dimension. No conversion takes place ?

  The SAP error message RSRV391 indicates that there is an issue related to a line item dimension in your SAP BW (Business Warehouse) system. This error typically arises when you attempt to perform a conversion or aggregation on a line item dimension, which is not allowed in SAP BW.
  
  Cause:
  
  Line Item Dimension: The dimension in question is a line item dimension, which means it is designed to store detailed transactional data. Line item dimensions are not meant to be aggregated or converted because they contain detailed records that do not have a meaningful aggregated value.
  Conversion Attempt: The error occurs when there is an attempt to perform a conversion (like changing the data type or aggregating values) on this line item dimension, which is not supported.
  
  
  Solution:
  
  Review the Query: Check the query or the process that is causing the error. Ensure that you are not trying to aggregate or convert data from a