Message type: E = Error
Message class:  VTX - Messages from tracking notification processing 
Message number: 018
Message text: Date or time is not entered (Prefix: &)
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The SAP error message VTX018, which states "Date or time is not entered (Prefix: &)," typically occurs in the context of the SAP VAT (Value Added Tax) determination process. This error indicates that a required date or time field has not been filled in, which is necessary for the system to process VAT-related transactions correctly.
Cause: Missing Date/Time Fields: The error is usually triggered when a date or time field that is mandatory for the transaction is left blank. This could be in various contexts, such as during the creation of a sales order, invoice, or any other document that requires VAT processing.
Configuration Issues: There may be issues with the configuration of the VAT settings in the system, leading to the requirement of certain fields that are not being populated. User Input Error: Users may inadvertently skip entering the required date or time information when processing transactions.
Solution: Check Required Fields: Review the transaction or
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