How To Fix TU174 - Main portion &1 is MDE portion; allocation not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: TU - Billing/Scheduling/Budget Billing

• Message number: 174

• Message text: Main portion &1 is MDE portion; allocation not permitted

What causes this issue?

Meter reading unit &V2& will be assigned to leading meter reading unit
&V1&, which is a PDC meter reading unit. This is not allowed.

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?

Set a number in field "PDC number" (which changes meter reading unit
&V2& to a PDC meter reading unit) or assign a meter reading unit that
is not a PDC meter reading unit as the leading meter reading unit.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TU174 - Main portion &1 is MDE portion; allocation not permitted ?

  The SAP error message TU174 indicates that there is an issue with the allocation of materials in the context of a transfer order or a stock transfer. Specifically, the error message states that the main portion of the material is being treated as a "MDE portion" (which stands for "Material Data Element"), and allocation is not permitted in this case.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Material Type: The material being processed may not be set up correctly in the system, leading to a mismatch in how the system interprets the material's data.
  Stock Type Issues: The stock type of the material may not allow for the allocation you are trying to perform. For example, if the material is in a blocked or restricted stock type, it cannot be allocated.
  Configuration Issues: There may be configuration settings in the system that are preventing the allocation of the main portion of the material.
  Transfer Order Issues: The transfer order may not be set up correctly, or there may be inconsistencies in the data related to the transfer order.
  
  Solution:
  To resolve the TU174 error, you can take the following steps:
  
  
  Check Material Master Data:
  
  Verify the material master data for the material in question. Ensure that the material type and stock type are correctly configured.
  Check if the material is marked as "blocked" or "restricted" in the stock overview.
  
  
  
  Review Transfer Order:
  
  Examine the transfer order details to ensure that all information is correct and that the order is properly set up.
  Make sure that the quantities and stock types in the transfer order are valid.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings related to the material and stock types in the SAP system. Ensure that the settings allow for the allocation you are trying to perform.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for more specific guidance on the error message and its implications.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights based on the specific configuration and setup of your SAP environment.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM03 (Display Material), LT03 (Create Transfer Order), or MB1B (Transfer Posting) to investigate the issue further.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Forums: Consider visiting 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 identify the root cause of the TU174 error and implement a solution to resolve it.