How To Fix IW064 - Changes to special stock are not possible

IW064 - Overview

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 064

• Message text: Changes to special stock are not possible

What causes this issue?

Changes to special stock are not possible.

System Response

As you have already planned an external procurement for this component
in sales order stock, the assignment to a collective stock is not
possible.

How to fix this error?

Delete the components and plan it again.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW064 - Changes to special stock are not possible ?

  The SAP error message IW064 ("Changes to special stock are not possible") typically occurs in the context of inventory management and logistics when trying to make changes to special stock types, such as consignment stock, project stock, or returnable packaging. This error indicates that the system does not allow modifications to the special stock due to specific constraints or settings.
  Causes of IW064 Error
  
  
  Special Stock Restrictions: The stock type you are trying to modify has restrictions that prevent changes. For example, consignment stock is owned by the vendor until it is consumed.
  
  
  Document Status: The document you are trying to change may be in a status that does not allow modifications. For instance, if the stock is already reserved or allocated, changes may not be permitted.
  
  
  Stock Type Configuration: The configuration settings for the special stock type may not allow changes. This can be due to settings in the material master or inventory