How To Fix /SAPAPO/PP_OPTIMIZER157 - PPM/PDS &1 is using more than 1 resource for lot size planning

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PP_OPTIMIZER -

• Message number: 157

• Message text: PPM/PDS &1 is using more than 1 resource for lot size planning

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PP_OPTIMIZER157 - PPM/PDS &1 is using more than 1 resource for lot size planning ?

  The SAP error message /SAPAPO/PP_OPTIMIZER157 indicates that the system has encountered an issue with the Production Planning and Detailed Scheduling (PP/DS) optimizer. Specifically, it points out that the Production Planning Model (PPM) or the Product Data Structure (PDS) is configured to use more than one resource for lot size planning, which is not allowed in certain scenarios.
  Cause:
  
  Multiple Resources Defined: The PPM or PDS is set up to use multiple resources for a specific product or production process, which can lead to conflicts in lot size planning.
  Configuration Issues: The configuration of the resources in the PDS may not align with the requirements of the lot size planning process.
  Resource Grouping: If resources are grouped together in a way that the optimizer cannot determine a single resource for planning, this error may occur.
  
  Solution:
  
  Review Resource Assignment: Check the PDS and ensure that only one resource is assigned for lot size planning. If multiple resources are necessary, consider whether they can be grouped or if the planning strategy needs to be adjusted.
  Adjust PDS Configuration: Modify the PDS to ensure that it complies with the requirements of the lot size planning. This may involve changing the resource assignments or adjusting the production process.
  Use Resource Groups: If applicable, consider using resource groups to consolidate resources under a single planning entity, which can help in resolving the conflict.
  Check Lot Size Settings: Review the lot size settings in the PPM and ensure they are correctly configured to work with the assigned resources.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring PDS and resources for lot size planning.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuring PDS and resources.
  Transaction Codes: Use transaction codes like /SAPAPO/PDS to view and edit the PDS, and /SAPAPO/PPM to manage the PPM settings.
  Testing: After making changes, run a test planning run to ensure that the error is resolved and that the lot size planning works as expected.
  Consult with Experts: If the issue persists, consider consulting with SAP experts or your internal SAP support team for further assistance.
  
  By addressing the configuration of resources and ensuring compliance with the lot size planning requirements, you should be able to resolve the error message /SAPAPO/PP_OPTIMIZER157.