Message type: E = Error
Message class: EA - IDoc Basis Messages
Message number: 667
Message text: Segment type & cannot be changed
Segment type &v1& is flagged as generated.
Generated segment types can only be displayed.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
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EA666 Current segment definition & can no longer be changed
What causes this issue? The current segment definition &v1& of segment ...
EA665 Current segment definition & can still be changed
What causes this issue? The current segment definition &v1& is not yet ...
EA668 & does not exist as active data element
Self-Explanatory Message Since SAP believes that this specific error message is ...
EA669 Field name & appears more than once in segment
Self-Explanatory Message Since SAP believes that this specific error message is ...
SAP messages fall into 3 different categories: Error messages
(message type = E), Warnings (W) or Informational (I) messages.
An error message will prevent you from continuing your work - it is a hard stop and you need to fix the error before you can proceed. A warning message will stop your work, however, you can then bypass the warning by pressing the Enter key on your keyboard. That said, it is still good practice to investigate the cause of the warning message and address it. An information message will not stop your work and is truly just for informational purposes.
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