Message type: E = Error
Message class:  RSODSO_UPDATE - Messages for loading DataStore objects 
Message number: 010
Message text: Preparation of the data package failed due to field assignment
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The SAP error message RSODSO_UPDATE010 indicates that there was a failure in the preparation of a data package due to issues with field assignment in the context of an Operational Data Store (ODS) or DataStore Object (DSO) update. This error typically arises during data loading processes, such as when data is being transferred from a source system to a DSO in SAP BW (Business Warehouse). Causes: Field Mismatch: The fields in the source data do not match the fields defined in the target DSO. This could be due to missing fields, incorrect data types, or incompatible field lengths. Data Transformation Issues: If there are transformations defined in the data flow, they may not be correctly mapping the source fields to the target fields. Data Type Conflicts: The data types of the source fields may not be compatible with the target fields in the DSO. Missing or Incorrect Data: If the source data contains null values
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