How To Fix OC830 - Material assignment only possible with zero stock

OC830 - Overview

• Message type: E = Error

• Message class: OC - IS-Oil: BDRP Bulk Distribution Requirement Planning messages

• Message number: 830

• Message text: Material assignment only possible with zero stock

What causes this issue?

The assignment of a material segment to a tank at a tank storage
location is only possible when the stocks at the beginning and the end
are zero (zero stocks).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Post a physical inventory with a zero count on this material segment,
assign the material to the tank, and then re-initialize the stock for
the tank. Before the end of the assignment, make sure that the stock is
back to zero.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

OC830 - Details

• The SAP error message OC830, which states "Material assignment only possible with zero stock," typically occurs in the context of inventory management and material movements. This error indicates that you are trying to assign a material to a process (like a production order, transfer order, or similar) when there is already stock of that material present in the system. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Existing Stock: The primary reason for this error is that the material you are trying to assign has existing stock in the system. The system does not allow the assignment of materials that already have stock unless specific conditions are met.
  Stock Type Restrictions: The material may be in a stock type (like blocked stock or quality inspection stock) that does not allow for assignment.
  Movement Type Restrictions: Certain movement types may have restrictions that prevent the assignment of materials with existing stock.
  Configuration