How To Fix WPLG031 - Query field name 'MATNR' in the OLTP(R/3) System must be in method &

SAP Error Message - Details

• Message type: E = Error

• Message class: WPLG - Interfaces for Space Management

• Message number: 031

• Message text: Query field name 'MATNR' in the OLTP(R/3) System must be in method &

How to fix this error?

Execute <DS:SIMG.BW_RT_AA_METH>Maintenance of Methods for Analytical
Applications</>.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message WPLG031 - Query field name 'MATNR' in the OLTP(R/3) System must be in method & ?

  SAP Error Message:
  WPLG031: Query field name 'MATNR' in the OLTP(R/3) System must be in method &?
  
  
  Cause:
  This error typically occurs in SAP BW (Business Warehouse) or SAP BW/4HANA when a query or transformation tries to access a field (in this case, MATNR - Material Number) from the OLTP (R/3) system, but the field is not properly defined or accessible in the expected method or context.
  More specifically:  
  
  The field MATNR is expected to be retrieved via a certain method (e.g., a function module, BAPI, or a specific extraction method) but is missing or not included in that method.  
  This can happen if the data source or extractor is not correctly configured to include the field MATNR.  
  It may also occur if the query or transformation is referencing a field that is not part of the extraction structure or the method used to pull data from the OLTP system.
  
  
  
  Solution:
  
  
  Check the