Message type: E = Error
Message class:  SV - View Maintenance: Customize Messages 
Message number: 704
Message text: The transport objects do not have the same transport layer
The transport layer <(>&<)>V1<(>&<)> for the function group R3TR FUGR
<(>&<)>V2<(>&<)> is not the same as the transport layer <(>&<)>V3<(>&<)>
for the maintenance object description R3TR TOBJ <(>&<)>V4<(>&<)>.
The table maintenance dialog is not generated.
ELSE
The object directory entry for the maintenance object description R3TR
TOBJ <(>&<)>V4<(>&<)> is not correct.
Assign a package that has the transport attributes of the package for
the function group R3TR FUGR <(>&<)>V2<(>&<)> to the object directory
entry for the maintenance object description R3TR TOBJ <(>&<)>V4<(>&<)>.
You can change the object directory entry with the <DS:TRAN.SE03>
Transport Organizer Tools</>.
The object directory entry for the maintenance object description R3TR
TOBJ <(>&<)>V4<(>&<)> is correct.
Choose a function group with the transport attributes of the maintenance
object description to generate the table maintenance dialog.
ENDIF
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.
The SAP error message SV704 indicates that there is a mismatch in the transport layers of the objects you are trying to transport. This typically occurs when you attempt to transport objects that belong to different transport layers, which is not allowed in SAP.
Cause: Different Transport Layers: The objects you are trying to transport are assigned to different transport layers. Each transport layer is associated with a specific development environment (e.g., Development, Quality Assurance, Production). Incorrect Transport Request: The transport request may contain objects from multiple transport layers, which is not permissible. Transport Layer Configuration: There may be a misconfiguration in the transport layer settings in the SAP system.
Solution: Check Transport Layers: Verify the transport layers of the objects you are trying to transport. You can do this by checking the transport layer assignment in the object’s properties. Use a Single Transport Layer: Ensure that all objects in the transport request belong to the same
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