How To Fix PQ106 - The scales for "&" and "&" are not compatible with each other

SAP Error Message - Details

• Message type: E = Error

• Message class: PQ - HR-PD: Personnel Development

• Message number: 106

• Message text: The scales for "&" and "&" are not compatible with each other

What causes this issue?

To perform this action, the scales of entries must be compatible for
the entire validity period.
When you move qualifications, the validity dates of the qualification
you want to move must be compatible with those of the qualifications
catalog.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PQ106 - The scales for "&" and "&" are not compatible with each other ?

  The SAP error message PQ106, which states "The scales for '&' and '&' are not compatible with each other," typically occurs in the context of production planning or quality management when there is an issue with the units of measure (UoM) or scales used in the system. This error indicates that the system is trying to compare or process data that uses different measurement scales, which are not compatible.
  Causes:
  
  Different Units of Measure: The most common cause is that the materials or components involved are defined with different units of measure that cannot be directly compared or converted.
  Configuration Issues: There may be configuration issues in the material master data, where the base unit of measure and alternative units of measure are not set up correctly.
  Inconsistent Data: The data entered in the system may be inconsistent, such as using different scales for the same material in different transactions.
  Batch Management: If batch management is enabled, the batches may have different units of measure that are not compatible.
  
  Solutions:
  
  Check Material Master Data: Review the material master records for the materials involved. Ensure that the units of measure are correctly defined and that the base unit of measure is consistent across all relevant records.
  Unit of Measure Conversion: If different units of measure are necessary, ensure that there are appropriate conversion factors defined in the system. You can set up conversion factors in the material master under the "Units of Measure" tab.
  Review Configuration Settings: Check the configuration settings in the SAP system related to units of measure and ensure they are set up correctly. This may involve consulting with your SAP configuration team.
  Data Consistency Check: Perform a data consistency check to identify any discrepancies in the data that may be causing the issue. This can involve running reports or using transaction codes like SE16N to analyze the relevant tables.
  Batch Management Review: If batch management is in use, ensure that the batches are defined with compatible units of measure.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM03 (Display Material), MM02 (Change Material), or MM01 (Create Material) to check and modify material master data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to SAP documentation for detailed information on units of measure and how they are managed within the system.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a technical consultant who can provide further assistance.