How To Fix AG602 - Material & is locked (availability check not possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: AG - Nachrichten ATP-Server

• Message number: 602

• Message text: Material & is locked (availability check not possible)

What causes this issue?

The material that you are processing, material &V1& (plant &V2&), has
been locked by user &V3&. The system has unsuccessfully attempted to
lock the material that you are using.

System Response

To avoid further delaying your work, the system will terminate its
attempts to lock the material and will not execute an availability
check.

How to fix this error?

Note that the operation you are processing has not been confirmed.
Therefore, you should execute an availability check again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AG602 - Material & is locked (availability check not possible) ?

  The SAP error message AG602 ("Material & is locked (availability check not possible)") typically occurs when a material is locked for certain operations, preventing the system from performing an availability check. This can happen in various scenarios, such as during a stock transfer, sales order processing, or production planning.
  Causes:
  
  Material Locking: The material may be locked due to ongoing transactions or processes, such as a stock transfer, production order, or sales order that is currently being processed.
  User Lock: A user may have locked the material for editing or other operations, preventing other users from accessing it.
  Batch Management: If the material is batch-managed, the specific batch may be locked.
  Inventory Management: The material may be in a state that prevents availability checks, such as being in a blocked stock or undergoing a physical inventory process.
  
  Solutions:
  
  Check Lock Status: Use transaction code SM12 to check for any user locks on the material. If you find a lock that is no longer needed, you can delete it (if you have the necessary authorizations).
  Check Transaction Status: Identify if there are any ongoing transactions that might be locking the material. You can use transaction codes like MB52 (List Warehouse Stocks on Hand) or MB5T (Stock in Transit) to check the status of the material.
  Wait for Completion: If the material is locked due to an ongoing process, you may need to wait until that process is completed.
  Batch Management: If the material is batch-managed, check if the specific batch is locked. You can use transaction code MSC3N to view batch details.
  Consult with Colleagues: If you suspect that a colleague is working on the material, it may be helpful to communicate with them to understand the situation.
  Check Configuration: Ensure that the material is correctly configured in the system and that there are no issues with its status in the material master.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage user locks.
  MB52: List warehouse stocks on hand.
  MB5T: Stock in transit.
  MSC3N: Display batch.
  
  
  Material Master: Review the material master data to ensure that all relevant fields are correctly filled out and that the material is not in a restricted status.
  User Authorizations: Ensure that you have the necessary authorizations to perform the required actions on the material.
  
  If the issue persists after checking these aspects, it may be necessary to consult with your SAP support team or refer to SAP Notes for more specific guidance related to your system configuration.