How To Fix MA403 - Calculation: single-level = "1" - multi-level = "2"

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 403

• Message text: Calculation: single-level = "1" - multi-level = "2"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA403 - Calculation: single-level = "1" - multi-level = "2" ?

  The SAP error message MA403, which states "Calculation: single-level = '1' - multi-level = '2'", typically occurs in the context of Material Requirements Planning (MRP) or when dealing with material master data in SAP. This error indicates a discrepancy between the single-level and multi-level planning settings for a material.
  Cause:
  
  Configuration Issue: The error often arises when there is a mismatch in the configuration settings for single-level and multi-level planning. This can happen if the material is set up for single-level planning but is being processed in a multi-level context, or vice versa.
  Material Master Data: The material master data may not be correctly configured for the type of planning you are trying to execute. For example, if a material is marked for multi-level planning but is being treated as a single-level material, this error can occur.
  MRP Type: The MRP type assigned to the material may not be compatible with the planning strategy being used.
  
  Solution:
  
  
  Check Material Master Settings: 
  
  Go to the material master record (transaction code MM03) and check the MRP views. Ensure that the settings for MRP type, planning strategy, and other relevant fields are correctly configured.
  Verify that the material is set up for the appropriate planning level (single-level or multi-level) based on your requirements.
  
  
  
  Review MRP Configuration:
  
  Check the configuration settings in the MRP area (transaction code OMD0) to ensure that the settings for single-level and multi-level planning are consistent and correctly defined.
  Ensure that the MRP type assigned to the material is appropriate for the planning strategy you intend to use.
  
  
  
  Run MRP Again: After making the necessary adjustments, try running the MRP process again to see if the error persists.
  
  
  Consult Documentation: If the issue continues, refer to SAP documentation or consult with your SAP support team for further assistance. They may provide insights specific to your system configuration.
  
  
  Related Information:
  
  Transaction Codes: 
  
  MM03: Display Material Master
  OMD0: MRP Configuration
  MD01: MRP Run
  
  
  MRP Types: Familiarize yourself with different MRP types (e.g., PD, VB, etc.) and their implications on planning.
  Planning Strategies: Understand the various planning strategies (e.g., Make-to-Stock, Make-to-Order) and how they affect material planning.
  
  By addressing the configuration and ensuring that the material master data aligns with your planning requirements, you should be able to resolve the MA403 error.