How To Fix PPH_MRP188 - Error in BOM explosion

SAP Error Message - Details

• Message type: E = Error

• Message class: PPH_MRP -

• Message number: 188

• Message text: Error in BOM explosion

What causes this issue?

An error has occurred during BOM explosion in MRP Live on HANA.

System Response

The system plans the material again in classic MRP.

How to fix this error?

You should check the BOM.

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 PPH_MRP188 - Error in BOM explosion ?

  The SAP error message PPH_MRP188, which indicates "Error in BOM explosion," typically occurs during the Material Requirements Planning (MRP) process when the system encounters issues while trying to explode a Bill of Materials (BOM). This can happen for various reasons, and understanding the cause is crucial for resolving the issue.
  Causes of PPH_MRP188 Error
  
  
  Missing BOM: The BOM for the material being processed may not exist or may not be valid for the specific plant or production version.
  
  
  Incorrect BOM Status: The BOM might be in a status that prevents it from being used, such as being marked for deletion or not being released.
  
  
  Invalid Components: One or more components in the BOM may be missing, inactive, or have incorrect data (e.g., invalid material numbers).
  
  
  Plant-Specific Issues: The BOM may not be assigned to the correct plant or may not be valid for the specific plant being used in the MRP run.
  
  
  Versioning Issues: If multiple versions of a BOM exist, the system may be trying to access a version that is not valid or not active.
  
  
  Configuration Issues: There may be configuration issues in the MRP settings or in the BOM settings that prevent proper explosion.
  
  
  Solutions to PPH_MRP188 Error
  
  
  Check BOM Existence: Verify that the BOM exists for the material in question. You can do this using transaction code CS03 (Display BOM) to check if the BOM is correctly defined.
  
  
  Review BOM Status: Ensure that the BOM is released and not marked for deletion. You can check the status in the BOM details.
  
  
  Validate Components: Check the components listed in the BOM for any discrepancies. Ensure that all components are valid and active.
  
  
  Plant Assignment: Confirm that the BOM is assigned to the correct plant and that the plant is specified in the MRP run.
  
  
  Check Versioning: If multiple BOM versions exist, ensure that the correct version is being used. You can specify the version in the MRP settings.
  
  
  MRP Configuration: Review the MRP configuration settings to ensure they are set up correctly. This includes checking the MRP type, lot size, and other relevant parameters.
  
  
  Run MRP in Debug Mode: If the issue persists, consider running the MRP in debug mode to get more detailed information about where the error occurs.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that may address this specific error.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS03 (Display BOM), MD01 (MRP Run), and MD04 (Stock/Requirements List) to help diagnose and resolve the issue.
  SAP Documentation: Refer to SAP Help documentation for detailed information on BOM management and MRP processes.
  User Forums: Engage with SAP community forums or user groups for insights and shared experiences regarding similar issues.
  
  By following these steps, you should be able to identify the root cause of the PPH_MRP188 error and implement the necessary solutions to resolve it.