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

SAP Error Message - Details

• 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 management configuration.
  
  
  Transaction Type Limitations: Certain transaction types may not support changes to special stock. For example, some movements may be restricted based on the type of stock.
  
  
  Solutions to IW064 Error
  
  
  Check Stock Type: Verify the type of special stock you are working with. Ensure that you are following the correct procedures for that stock type.
  
  
  Review Document Status: Check the status of the document you are trying to modify. If it is locked or in a status that does not allow changes, you may need to unlock it or change its status.
  
  
  Consult Configuration: Review the configuration settings for the special stock in the material master and inventory management. Ensure that the settings allow for the changes you are trying to make.
  
  
  Use Correct Transaction Codes: Make sure you are using the appropriate transaction codes for the operations you are trying to perform. Some transactions may not support changes to special stock.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Documentation: Review SAP documentation related to inventory management and special stock handling for best practices and guidelines.
  User Permissions: Ensure that you have the necessary permissions to make changes to special stock. Sometimes, user roles may restrict certain actions.
  
  By following these steps, you should be able to identify the cause of the IW064 error and implement a suitable solution.