How To Fix MDG_BS_MAT_ACCESS203 - Material &1: Base unit of measure cannot be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_BS_MAT_ACCESS - Message class for MDG Material Access Layer

• Message number: 203

• Message text: Material &1: Base unit of measure cannot be deleted

What causes this issue?

For material &V1& the entry for the base UOM was deleted on the basic
data screen or in the list of dimensions (UOM conversion factors).

System Response

The entry for the base UOM is restored. If you have to change the base
UOM of the material, the list of conversion factors will be adapted
automatically.

How to fix this error?

Do not delete the entry for the base UOM.

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 MDG_BS_MAT_ACCESS203 - Material &1: Base unit of measure cannot be deleted ?

  The SAP error message MDG_BS_MAT_ACCESS203 indicates that there is an issue with attempting to delete the base unit of measure for a material in the Master Data Governance (MDG) system. The error message typically states: "Material &1: Base unit of measure cannot be deleted." Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Dependencies: The base unit of measure is often linked to various dependencies in the system, such as existing stock, purchase orders, sales orders, or other transactions. If there are active transactions that reference the base unit of measure, it cannot be deleted.
  Configuration Settings: The system may have specific configuration settings that prevent the deletion of the base unit of measure if it is being used in certain contexts.
  Data Integrity: SAP enforces data integrity rules to ensure that critical data elements, like the base unit of measure, are not removed if they are still in use.
  
  Solution:
  
  
  Check Dependencies: Before attempting to delete the base unit of measure, check for any existing transactions that may be using it. This includes:
  
  Open purchase orders
  Open sales orders
  Stock levels
  Any other references in the system
  
  If there are active transactions, you will need to resolve or close them before deletion.
  
  
  Change the Base Unit of Measure: If you need to change the base unit of measure rather than delete it, you can do so by updating the material master record. Ensure that the new unit of measure is valid and does not conflict with existing data.
  
  
  Consult Configuration: Review the configuration settings in the Material Management (MM) module to ensure that there are no restrictions preventing the deletion of the base unit of measure.
  
  
  Use Transaction Codes: Utilize transaction codes like MM02 (Change Material) to modify the material master data and check the base unit of measure settings.
  
  
  Check for Custom Logic: If your organization has custom logic or enhancements in place, ensure that these do not interfere with the deletion process.
  
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured in SAP and the role of the base unit of measure is crucial. The base unit of measure is fundamental for inventory management, purchasing, and sales processes.
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to the official SAP documentation for Master Data Governance and Material Management for detailed information on managing material data.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Material Management and Master Data Governance.