Message type: E = Error
Message class:  CKMLDUVN - Inventory differences distribution messages 
Message number: 206
Message text: Negative qty withdrawn for material of phys. inventory doc. &1/&2
The quantity of goods issues for the materials in inventory document
&v1&, item &v2& is smaller than the reversal goods issues in the
distribution period. It is, therefore, not possible to distribute this
material to the orders.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Check the distribution indicator, and change it as appropriate.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CKMLDUVN206 "Negative qty withdrawn for material of phys. inventory doc. &1/&2" typically occurs in the context of inventory management and material valuation. This error indicates that there is an attempt to withdraw a negative quantity of a material that is associated with a physical inventory document. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Negative Quantity Withdrawal: The error arises when there is an attempt to post a withdrawal of a material quantity that is negative. This can happen if the system is trying to adjust inventory levels incorrectly. Physical Inventory Document Issues: The material in question is linked to a physical inventory document, and the system does not allow negative quantities to be withdrawn from such documents. Incorrect Configuration: There may be configuration issues in the inventory management settings that do not allow for proper handling of physical inventory adjustments.
Solution: Check Inventory Levels: Verify the current
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CKMLDUVN205 Material document &1/&2 was posted
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CKMLDUVN204 Order &1 does not allow any more goods issues; InvDoc no.: &2/&3
What causes this issue?  The status of order number &v1& does not allow any more goods issues. The System cannot distribute the materials assi...
CKMLDUVN207 Document &1 / &2 has been reversed with document &3 / &4
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CKMLDUVN208 Document &1 / &2 could not be reversed &3 &4 &5 &6
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.