Message type: E = Error
Message class:  VTX - Messages from tracking notification processing 
Message number: 001
Message text: Required segment & missing in IDoc
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The SAP error message VTX001: Required segment & missing in IDoc typically occurs when an IDoc (Intermediate Document) is missing a required segment that is necessary for processing. This error is often related to the handling of electronic data interchange (EDI) or other data transfer processes in SAP.
Cause: Missing Segment: The IDoc structure is defined in such a way that certain segments are mandatory for the IDoc to be processed correctly. If one of these required segments is missing, the system will throw this error. Incorrect IDoc Type: The IDoc type being used may not match the expected structure for the data being sent or received.
Configuration Issues: There may be issues in the configuration of the IDoc processing, such as incorrect mapping or settings in the partner profile. Data Issues: The data being sent may not conform to the expected format or structure, leading to missing segments.
Solution: Check IDoc Structure: Review the IDoc structure
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