Message type: E = Error
Message class: MH - Maintain Material Master Data (Retail)
Message number: 202
Message text: First specify the main layout module for the unit of measure &
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MH202
- First specify the main layout module for the unit of measure & ?The SAP error message MH202, which states "First specify the main layout module for the unit of measure &," typically occurs in the context of material management or logistics when dealing with units of measure (UoM) in SAP.
Cause: This error usually arises when the system expects a main layout module to be defined for a specific unit of measure, but it has not been set up. The main layout module is essential for the system to understand how to handle the conversion and representation of different units of measure associated with a material.
Solution: To resolve this error, you need to define the main layout module for the unit of measure in question. Here are the steps to do this: Access the Unit of Measure Configuration: Go to the SAP Easy Access screen. Navigate to the following path: Logistics > General > Master Data > Units of Measure > Define Units of Measure. Find the Relevant Unit
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