How To Fix F5638 - Quantity and unit of measurement are not consistent

SAP Error Message - Details

• Message type: E = Error

• Message class: F5 - Document Editing

• Message number: 638

• Message text: Quantity and unit of measurement are not consistent

What causes this issue?

Quantity was entered without a unit of quantity or vice versa.

System Response

Incorrect entry.

How to fix this error?

Enter consistent quantity specifications.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message F5638 - Quantity and unit of measurement are not consistent ?

  The SAP error message F5638, which states "Quantity and unit of measurement are not consistent," typically occurs in the context of financial transactions, particularly when dealing with materials or inventory management. This error indicates that there is a mismatch between the quantity of an item and its unit of measurement in a transaction.
  Causes:
  
  
  Unit of Measurement (UoM) Configuration: The unit of measurement defined for the material may not match the quantity being entered. For example, if a material is defined in kilograms but the quantity is entered in grams, this inconsistency will trigger the error.
  
  
  Incorrect Quantity Entry: The user may have entered a quantity that does not correspond to the expected unit of measurement. For instance, entering a whole number when a decimal is expected.
  
  
  Material Master Data Issues: The material master data may not be correctly set up, leading to discrepancies in how quantities and units of measurement are defined.
  
  
  Conversion Factors: If there are conversion factors defined for the material, they may not be correctly applied, leading to inconsistencies.
  
  
  Transaction Type: Certain transaction types may have specific requirements for units of measurement that are not being met.
  
  
  Solutions:
  
  
  Check Material Master Data: Review the material master data to ensure that the unit of measurement is correctly defined. Make sure that the base unit of measure and any alternative units of measure are set up correctly.
  
  
  Verify Quantity Entry: Double-check the quantity being entered in the transaction. Ensure that it is in the correct unit of measurement and that it aligns with the material's defined UoM.
  
  
  Review Conversion Factors: If applicable, check the conversion factors for the material to ensure they are correctly defined and being applied in the transaction.
  
  
  Adjust Transaction Type: If the error is related to a specific transaction type, ensure that the transaction is being processed in a manner that is consistent with the requirements for that type.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the transaction you are working with, as there may be additional requirements or configurations needed.
  
  
  User Training: Ensure that users are trained on the correct procedures for entering quantities and units of measurement to minimize errors.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., MM01 for material creation, MM02 for material changes) that may help in reviewing and correcting material master data.
  Unit of Measure Tables: Review the relevant tables in SAP (e.g., T006 for units of measure) to understand how units are defined and managed.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the F5638 error and ensure consistency between quantity and unit of measurement in your SAP transactions.