How To Fix O1077 - Unit of measure changed (old: &,new: &)

SAP Error Message - Details

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 077

• Message text: Unit of measure changed (old: &,new: &)

What causes this issue?

Document item data differs from quantity schedule data, it should be
the same as the quantity schedule ->, please maintain manually.

System Response

How to fix this error?

Go to quantity schedule maintenance, before leaving the quantity
schedule, a popup is displayed asking if you want to make the quantity
schedule data equal to the document item data. Please check the
quantities and use the "Restructure QS" function if possible. If some
schedule lines have already been called-off, it is possible to correct
quantities with a special function in Report ROIACM00.
&reference&
<DS:GLOS.unit of measure>Unit of measure</> /
<DS:GLOS.order unit>order unit</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O1077 - Unit of measure changed (old: &,new: &) ?

  The SAP error message O1077, which states "Unit of measure changed (old: &, new: &)," typically occurs when there is a discrepancy between the unit of measure (UoM) defined in the system and the one being used in a transaction or document. This can happen in various contexts, such as during the creation of purchase orders, sales orders, or inventory management.
  Cause:
  
  Unit of Measure Change: The most common cause is that the unit of measure for a material has been changed in the material master or in the relevant configuration settings.
  Inconsistent Data: The transaction is trying to use a different unit of measure than what is defined in the material master or the relevant document.
  Conversion Issues: There may be issues with the conversion factors between different units of measure, leading to inconsistencies.
  Master Data Updates: Changes in the material master data that have not been propagated to all relevant documents or transactions.
  
  Solution:
  
  Check Material Master: Verify the unit of measure settings in the material master (transaction code MM03). Ensure that the correct base unit of measure and alternative units of measure are defined.
  Review Transaction Data: Look at the specific transaction or document that triggered the error. Ensure that the unit of measure being used matches what is defined in the material master.
  Update Documents: If the unit of measure has changed, you may need to update existing documents or transactions to reflect the new unit of measure.
  Consistency Check: Run consistency checks on the relevant data to ensure that all related documents and master data are aligned.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to ensure that the settings for units of measure are correctly configured in the system.
  
  Related Information:
  
  Unit of Measure Types: Understand the different types of units of measure in SAP, such as base unit, alternative units, and sales units.
  Conversion Factors: Familiarize yourself with how conversion factors are set up in SAP for different units of measure.
  Transaction Codes: Useful transaction codes include:
  
  MM03: Display Material Master
  ME21N: Create Purchase Order
  VA01: Create Sales Order
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to unit of measure changes.
  
  If the problem continues after following these steps, it may be beneficial to engage with SAP support or your internal SAP team for further investigation.