How To Fix BOS01400 - Assignment of service number only for same unit of measure: &1 / &2

BOS01400 - Overview

• Message type: E = Error

• Message class: BOS01 - Customer BOS Processing

• Message number: 400

• Message text: Assignment of service number only for same unit of measure: &1 / &2

What causes this issue?

A service number has been assigned to a service line. The service
master record, however, contains a different unit of measure from the
service line.

System Response

An assignment is not possible.

How to fix this error?

Change the unit of measure for the service master record or assign a
different master record.

Procedure for System Administrators

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 BOS01400 - Assignment of service number only for same unit of measure: &1 / &2 ?

  The SAP error message BOS01400, which states "Assignment of service number only for same unit of measure: &1 / &2," typically occurs in the context of service management or service order processing. This error indicates that there is a mismatch in the units of measure (UoM) between the service number being assigned and the service order or item to which it is being assigned.
  
  Cause:
  The error is caused by attempting to assign a service number that has a different unit of measure than the one defined for the service order or item. For example, if the service number is defined in hours and the service order is defined in days, this mismatch will trigger the error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Units of Measure: Verify the unit of measure for both the service number and the service order/item. Ensure that they match. You can do this by:
  
  Navigating