How To Fix MW418 - Alloc tbl item cat. of item & missing in global memory

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 418

• Message text: Alloc tbl item cat. of item & missing in global memory

What causes this issue?

The allocation table item category is missing in global memory.

System Response

The plant status is set depending on the item category of the
allocation table item that the plant belongs to. The item category
must therefore be known.
The item category is only known if plant processing was called
after processing the allocation table item.

How to fix this error?

This is a system error. Please contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MW418 - Alloc tbl item cat. of item & missing in global memory ?

  The SAP error message MW418 ("Alloc tbl item cat. of item & missing in global memory") typically occurs in the context of inventory management or material management processes. This error indicates that the system is unable to find the allocation table for the item category specified in the global memory, which is necessary for processing certain transactions.
  Cause:
  
  Missing Configuration: The item category may not be properly configured in the system. This can happen if the item category is not defined in the relevant configuration settings.
  Global Memory Issues: The global memory may not have been initialized correctly, or there may be a problem with the session or transaction that is causing the data to be unavailable.
  Transaction Errors: The error may arise during specific transactions, such as goods movements, where the system expects certain data to be available in memory.
  Custom Development: If there are custom programs or enhancements that interact with item categories, they may not be handling the data correctly.
  
  Solution:
  
  
  Check Item Category Configuration:
  
  Go to the configuration settings for item categories in the relevant module (e.g., MM, SD).
  Ensure that the item category in question is defined and properly configured.
  
  
  
  Review Transaction Data:
  
  Check the transaction that triggered the error. Ensure that all necessary data is being passed correctly.
  If applicable, try to replicate the error with different data to see if it is data-specific.
  
  
  
  Clear Global Memory:
  
  Sometimes, clearing the session or restarting the transaction can help. Log out and log back into the system to refresh the global memory.
  
  
  
  Check for Custom Code:
  
  If there are any custom developments or enhancements, review the code to ensure that it is correctly handling item categories and global memory.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address this specific error. There may be known issues or fixes available.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error, including transaction codes and any relevant logs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP that deal with inventory management, such as MIGO (Goods Movement) or MB1A (Goods Withdrawal).
  Documentation: Review SAP documentation related to item categories and inventory management for a better understanding of how they function within the system.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the MW418 error in your SAP system.