How To Fix /CWM/MM028 - Entry quantities in base and parallel quantity must exceed zero

SAP Error Message - Details

• Message type: E = Error

• Message class: /CWM/MM -

• Message number: 028

• Message text: Entry quantities in base and parallel quantity must exceed zero

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /CWM/MM028 - Entry quantities in base and parallel quantity must exceed zero ?

  The SAP error message /CWM/MM028 Entry quantities in base and parallel quantity must exceed zero typically occurs in the context of inventory management or material movements in SAP, particularly when dealing with the handling of quantities in different units of measure.
  Cause:
  This error message indicates that the system has detected that the quantities entered for a material movement (such as goods receipt, goods issue, or transfer posting) are either zero or negative in both the base unit of measure and the parallel unit of measure. This situation is not allowed because SAP requires that at least one of the quantities must be greater than zero to proceed with the transaction.
  Solution:
  To resolve this error, you should:
  
  
  Check Quantity Entries: Ensure that the quantities you are entering for the transaction are greater than zero. This applies to both the base quantity and any parallel quantities you may be using.
  
  
  Review Unit of Measure Settings: Verify that the units of measure for the material are correctly defined in the material master. Ensure that the base unit of measure and any parallel units of measure are set up correctly.
  
  
  Correct Transaction Data: If you are using a transaction that allows for multiple quantities (like a goods receipt with different units), make sure that at least one of the quantities is greater than zero.
  
  
  Consult Documentation: If you are unsure about the correct units of measure or how to enter quantities, refer to the SAP documentation or help resources for guidance on the specific transaction you are working with.
  
  
  Check for Customizations: If your organization has custom developments or enhancements in place, check with your SAP support team to see if there are any specific rules or validations that might be affecting the transaction.
  
  
  Related Information:
  
  Material Master Data: Review the material master data for the item in question to ensure that the units of measure are correctly defined.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MIGO (Goods Movement) or MB1A (Goods Issue) where this error might occur.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on how to correctly enter quantities in transactions to avoid this error in the future.
  
  By following these steps, you should be able to identify the cause of the error and take the necessary actions to resolve it.