How To Fix EWA657 - Cannot change quantities and volumes at the same time

SAP Error Message - Details

• Message type: E = Error

• Message class: EWA - IS-U-WA: Waste Management

• Message number: 657

• Message text: Cannot change quantities and volumes at the same time

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EWA657 - Cannot change quantities and volumes at the same time ?

  The SAP error message EWA657, "Cannot change quantities and volumes at the same time," typically occurs in the context of inventory management or logistics when a user attempts to modify both the quantity and volume of a material or product simultaneously in a transaction. This restriction is in place to maintain data integrity and ensure that the system can accurately track inventory levels and associated metrics.
  Cause:
  
  Simultaneous Changes: The primary cause of this error is the attempt to change both the quantity and volume fields in a single transaction. SAP does not allow these two fields to be updated at the same time to prevent inconsistencies in inventory data.
  Configuration Settings: Certain configurations in the SAP system may enforce this restriction based on business rules or specific module settings.
  User Input Error: The user may inadvertently be trying to update both fields without realizing it.
  
  Solution:
  
  Separate Transactions: To resolve this error, you should separate the changes into two distinct transactions. First, update the quantity, save the transaction, and then proceed to update the volume in a separate transaction.
  Review Input Fields: Ensure that you are only modifying one of the fields (either quantity or volume) at a time. Double-check the input fields before executing the transaction.
  Check Configuration: If you believe that this restriction is not necessary for your business process, consult with your SAP administrator or functional consultant to review the configuration settings related to inventory management and see if adjustments can be made.
  User Training: Provide training or documentation to users to help them understand the limitations and proper procedures for updating inventory data in SAP.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any updates or patches related to this error message. Sometimes, SAP releases notes that provide additional context or solutions for specific error messages.
  Transaction Codes: Familiarize yourself with the relevant transaction codes (e.g., MIGO, MB1A, etc.) that are used for inventory management, as the error may occur in these contexts.
  Documentation: Review SAP documentation or user manuals related to inventory management for best practices and guidelines on handling quantities and volumes.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or your internal IT team for further assistance.