How To Fix MM_PUR_SES020 - Stated quantity must be a positive number

SAP Error Message - Details

• Message type: E = Error

• Message class: MM_PUR_SES -

• Message number: 020

• Message text: Stated quantity must be a positive number

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 MM_PUR_SES020 - Stated quantity must be a positive number ?

  The SAP error message MM_PUR_SES020, which states "Stated quantity must be a positive number," typically occurs in the context of purchasing documents, such as purchase orders or purchase requisitions, when the system expects a positive quantity but receives a zero or negative value instead.
  Cause:
  
  Incorrect Quantity Entry: The most common cause is that the user has entered a quantity of zero or a negative number in the relevant field.
  Data Transfer Issues: If data is being transferred from another system or module, there may be issues with how quantities are being passed.
  Default Values: Sometimes, default values set in the system may not be appropriate, leading to a zero or negative quantity being populated.
  User Error: Users may inadvertently input incorrect values due to misunderstanding the field requirements.
  
  Solution:
  
  Check Quantity Input: Ensure that the quantity entered in the relevant field is a positive number. If it is zero or negative, correct it to a valid positive value.
  Review Document Type: Make sure that the document type you are working with allows for the entry of quantities and that you are following the correct procedures for that document type.
  Validate Data Transfer: If the error arises during data transfer, check the source of the data to ensure that it is providing valid positive quantities.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to review any settings that might be affecting quantity defaults or validations.
  User Training: Provide training or documentation to users to ensure they understand how to correctly enter quantities in purchasing documents.
  
  Related Information:
  
  Transaction Codes: This error can occur in various transactions related to purchasing, such as ME21N (Create Purchase Order), ME51N (Create Purchase Requisition), etc.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If you have access to debugging tools, you can trace the program execution to see where the quantity is being set and why it might be zero or negative.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check for any user exits or BAdIs that might be affecting quantity calculations or entries.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.