Message type: E = Error
Message class:  RSO_RES_QMSGS - Messages directly related to Query Designer. 
Message number: 302
Message text: Formula operand &1 does not exist and has been replaced with a constant.
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The SAP error message RSO_RES_QMSGS302 indicates that a formula operand in a query or report does not exist, and as a result, it has been replaced with a constant. This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when working with queries in BEx (Business Explorer) or similar reporting tools.
Cause: Missing Characteristic or Key Figure: The operand referenced in the formula may not exist in the InfoProvider (e.g., InfoCube, DataStore Object) that the query is based on. This can happen if the characteristic or key figure has been deleted or is not included in the query definition. Incorrect Formula Definition: The formula may have been defined incorrectly, referencing an operand that is not valid or not available in the context of the query. Changes in Data Model: If there have been recent changes to the underlying data model (e.g., changes in InfoObjects, InfoProviders, or transformations), it
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