Message type: E = Error
Message class:  HU_VV0C - Messages during maintenance of HU Customizing 
Message number: 018
Message text: Movement type &1 with special stock &2 not supported in VLMOVE
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
The two-step processing between WM and HU storage locations with
movement types 313/315 and special stock B/E/Q/K cannot be executed
fully.
Use transaction MB11 for movement type: 313 with SOBKZ: B/E/Q/K and MBSU
for movement type: 315 with SOBKZ: B/E/Q/K.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message HU_VV0C018 indicates that a specific movement type with a special stock indicator is not supported in the VLMOVE transaction. This error typically arises when trying to perform a stock movement that is not allowed for the specified movement type and special stock combination.
Cause: Unsupported Movement Type: The movement type you are trying to use is not configured to handle the special stock type you are working with. For example, certain movement types may only be valid for unrestricted stock and not for special stocks like consignment, project stock, or returns.
Configuration Issues: The configuration in the system may not allow the combination of the movement type and special stock. This can happen if the movement type is not set up correctly in the customizing settings. Special Stock Limitations: Some special stocks have specific movement types that are allowed, and using an unsupported movement type will trigger this error.
Solution: Check Movement
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
HU_VV0C017 Storage location &1 is HU-managed - cannot be a partner storage-location
What causes this issue?  The storage location that you entered is HU-managed. Since the point of a partner storage-location is to be a predefined stor...
HU_VV0C016 HU management is only permitted if partner storage location is specified
What causes this issue?  If you want to specify a storage location as being HU-managed, you must assign a non-HU partner storage-location to it. Unpac...
HU_VV0C020 ***  GTL Numbering
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
HU_VV0C021 Enter an internal interval or an external interval.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.