How To Fix LT171 - Changing unit of weight can cause inconsistencies in the database

SAP Error Message - Details

• Message type: E = Error

• Message class: LT - LE-WM: View or Table Maintenance Error Messages

• Message number: 171

• Message text: Changing unit of weight can cause inconsistencies in the database

What causes this issue?

When the unit of weight was changed, the system found
<GL:storage_bin>storage bins</> in <GL:warehouse_number>warehouse
number</> '&V1&' with weight data (field <DS:DE.LAGP_LGEWI>Maximum
weight</>). Changing this unit of weight can cause data
inconsistencies.

How to fix this error?

If you want to change the unit of weight in a productive warehouse
number, you must correct or recalculate the weight data of the storage
bins and quants after you have changed the field.
To do this, use the program <DS:RE.RLS10200>RLS10200</>.
Start the program via the menu <LS>"System -> Services -> Reporting"</>

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message LT171 - Changing unit of weight can cause inconsistencies in the database ?

  The SAP error message LT171, which states "Changing unit of weight can cause inconsistencies in the database," typically occurs when there is an attempt to change the unit of measure (UoM) for a material that is already in use in various transactions or has existing stock. This can lead to inconsistencies in inventory management and reporting, as the system relies on consistent units of measure for accurate calculations and data integrity.
  Cause:
  
  Unit of Measure Change: The error is triggered when a user attempts to change the unit of weight (e.g., from kilograms to pounds) for a material that has already been used in transactions.
  Existing Transactions: If there are existing stock levels, purchase orders, sales orders, or other transactions that reference the material, changing the unit of measure can lead to discrepancies in how quantities are calculated and reported.
  Configuration Issues: Sometimes, the configuration settings in the material master or the way units of measure are defined can lead to this error.
  
  Solution:
  
  Avoid Changing UoM: The best practice is to avoid changing the unit of measure for materials that are already in use. If a change is necessary, consider creating a new material master record with the desired unit of measure.
  Check for Open Transactions: Before attempting to change the unit of measure, check for any open transactions related to the material. This includes stock levels, purchase orders, sales orders, and any other relevant documents.
  Use a New Material: If a change is essential, create a new material with the desired unit of measure and transfer stock from the old material to the new one using appropriate inventory management transactions (e.g., stock transfer).
  Consult Documentation: Review SAP documentation or consult with your SAP support team for specific guidelines on handling unit of measure changes in your version of SAP.
  Custom Development: In some cases, if the business process requires frequent changes to units of measure, consider discussing with your SAP development team about potential custom solutions or enhancements.
  
  Related Information:
  
  Material Master Data: Understanding how material master data is structured in SAP and the implications of changing units of measure.
  Inventory Management: Familiarity with inventory management processes in SAP, including how stock levels are tracked and reported.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as SAP frequently updates its software to address known issues.
  Training and Documentation: Ensure that users are trained on the implications of changing units of measure and the proper procedures to follow to avoid this error.
  
  By following these guidelines, you can mitigate the risk of encountering the LT171 error and maintain data integrity within your SAP system.