Message type: E = Error
Message class:  SLS_LO_GAF_EWB - GAF Enh WB Msg for LO based FPM config sales UI 
Message number: 150
Message text: Field identifier must not be initial
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The SAP error message SLS_LO_GAF_EWB150: Field identifier must not be initial typically occurs in the context of logistics or when dealing with electronic documents, such as e-way bills in India. This error indicates that a required field identifier is missing or has not been populated correctly in the system.
Cause: Missing Data: The error usually arises when a mandatory field that is required for processing a transaction or document is left blank or is not filled in correctly.
Configuration Issues: There may be issues with the configuration of the system, where certain fields are expected to be populated based on the business process but are not set up correctly. Data Entry Errors: Users may inadvertently skip entering required information during data entry, leading to this error.
Solution: Check Required Fields: Review the transaction or document you are trying to process and ensure that all mandatory fields are filled in. Look for any fields that are marked
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