Message type: E = Error
Message class:  OIJ_RU - Messages for TSW-ETRAN integration 
Message number: 804
Message text: Mandatory field 'Currency Key' is empty
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The SAP error message OIJ_RU804, which indicates that the mandatory field 'Currency Key' is empty, typically occurs in the context of SAP Oil and Gas (OIJ) module transactions. This error suggests that a required field for currency information has not been filled in, which is necessary for processing transactions related to financial data.
Cause: Missing Currency Key: The most direct cause of this error is that the 'Currency Key' field has not been populated in the relevant transaction or master data record.
Configuration Issues: There may be issues with the configuration of the currency settings in the system, leading to the field not being available or not being filled automatically. Data Entry Errors: Users may have overlooked entering the currency information during data entry. Integration Issues: If the data is being pulled from another system or module, there may be integration issues that prevent the currency key from being populated.
Solution: Check Data Entry: Ensure that the
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