How To Fix /ISDFPS/MM_CS091 - Reduction of quantity; start purchase requisition &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/MM_CS -

• Message number: 091

• Message text: Reduction of quantity; start purchase requisition &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISDFPS/MM_CS091 - Reduction of quantity; start purchase requisition &1 ?

  The SAP error message /ISDFPS/MM_CS091 Reduction of quantity; start purchase requisition &1 typically occurs in the context of materials management and procurement processes within SAP. This message indicates that there has been a reduction in the quantity of a material that is linked to a purchase requisition, and the system is prompting for action to address this change.
  Cause:
  
  Quantity Reduction: The primary cause of this error is that the quantity of a material that was previously planned or ordered has been reduced. This could happen due to changes in demand, adjustments in inventory levels, or changes in production plans.
  Purchase Requisition: The error specifically mentions a purchase requisition, which means that the system is trying to reconcile the changes in quantity with the existing purchase requisition that was created for that material.
  Configuration Issues: There may be configuration settings in the system that are not aligned with the current business processes, leading to this error.
  
  Solution:
  
  Review the Purchase Requisition: Check the purchase requisition referenced in the error message (&1). Ensure that the quantity is correctly updated to reflect the current requirements.
  Adjust Quantity: If the quantity has been reduced, you may need to adjust the purchase requisition accordingly. This can be done by accessing the purchase requisition in the SAP system and modifying the quantity.
  Create New Purchase Requisition: If the existing purchase requisition is no longer valid due to the quantity change, consider creating a new purchase requisition with the updated quantity.
  Check Material Master Data: Ensure that the material master data is accurate and reflects the current requirements. Any discrepancies in the master data can lead to errors in procurement processes.
  Consult with Procurement Team: If you are unsure about the changes or the appropriate action to take, consult with your procurement or materials management team for guidance.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as ME51N (Create Purchase Requisition), ME52N (Change Purchase Requisition), or ME53N (Display Purchase Requisition) to manage purchase requisitions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling quantity reductions in purchase requisitions.
  Documentation: Review SAP documentation related to materials management and procurement processes for best practices and troubleshooting steps.
  
  By following these steps, you should be able to resolve the error and ensure that your procurement processes continue smoothly.