How To Fix MPE_PLAN_RTG_VERS131 - Original positive quantity &1 cannot be changed to negative &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_PLAN_RTG_VERS - Manage Production Routing Version

• Message number: 131

• Message text: Original positive quantity &1 cannot be changed to negative &2

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 MPE_PLAN_RTG_VERS131 - Original positive quantity &1 cannot be changed to negative &2 ?

  The SAP error message MPE_PLAN_RTG_VERS131 indicates that there is an issue with the planning version in the Material Planning Environment (MPE). Specifically, the error states that an original positive quantity cannot be changed to a negative quantity. This typically occurs during the planning process when trying to adjust quantities in a way that violates the business rules set in the system.
  
  Cause:
  
  Quantity Adjustment: The error usually arises when there is an attempt to change a planned quantity from a positive value to a negative value. This could happen during planning activities, such as when adjusting forecasts or production plans.
  Data Integrity Rules: SAP has built-in data integrity rules that prevent negative quantities in certain contexts, especially if they are not allowed by the business logic or configuration.
  Incorrect Planning Version: The planning version being used may not allow for negative quantities, or it may not be set up correctly to handle the changes