How To Fix MD801 - Check MRP type

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 801

• Message text: Check MRP type

What causes this issue?

You want to plan the material in the APO system. The MRP type currently
set for the material is not for the MRP procedure "no planning, with
BOM explosion".

System Response

This can cause problems in MRP. In certain circumstances, the planning
from the APO system may be overwritten again by the next planning run.
You may want this to happen if you only want to use the APO system to
plan in the short-term period. Then you should protect this short-term
period from MRP by specifying an appropriate planning time fence.

How to fix this error?

If necessary, select an MRP type for the MRP procedure "no planning,
with BOM explosion".

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 MD801 - Check MRP type ?

  The SAP error message MD801, which states "Check MRP type," typically occurs during the Material Requirements Planning (MRP) process. This error indicates that there is an issue with the MRP type assigned to a material in the system. The MRP type determines how the material is planned and managed in terms of inventory and production.
  Causes of MD801 Error
  
  Missing MRP Type: The material does not have an MRP type assigned in the material master data.
  Incorrect MRP Type: The assigned MRP type may not be appropriate for the material, leading to planning issues.
  Inactive MRP Type: The MRP type assigned to the material may be inactive or not configured properly in the system.
  Configuration Issues: There may be issues in the configuration of the MRP types in the system settings.
  Material Status: The material may have a status that prevents it from being planned (e.g., blocked for planning).
  
  Solutions to MD801 Error
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the MRP type assigned to the material.
  Ensure that the MRP type is appropriate for the material and that it is not missing.
  
  
  
  Assign or Change MRP Type:
  
  If the MRP type is missing or incorrect, you can assign or change it using transaction code MM02.
  Make sure to select the appropriate MRP type based on the planning strategy you want to use.
  
  
  
  Review MRP Type Configuration:
  
  Check the configuration of the MRP types in the system (transaction code OMD0).
  Ensure that the MRP type is active and properly configured.
  
  
  
  Check Material Status:
  
  Verify if the material has any status that might prevent it from being planned (e.g., blocked for planning).
  You can check this in the material master data under the "Status" tab.
  
  
  
  Run MRP Again:
  
  After making the necessary changes, run the MRP process again to see if the error persists.
  
  
  
  Related Information
  
  MRP Types: Common MRP types include PD (MRP), VB (Manual Reorder Point), and others. Each type has specific planning characteristics.
  Transaction Codes:
  
  MM03: Display Material Master
  MM02: Change Material Master
  OMD0: MRP Type Configuration
  MD01: MRP Run
  
  
  Documentation: Refer to SAP Help documentation for detailed information on MRP types and their configurations.
  
  By following these steps, you should be able to resolve the MD801 error and ensure that your materials are properly planned in the MRP process.