Preprocess unit conversions (form) [AX 2012]

Updated: October 19, 2012

Applies To: Microsoft Dynamics AX 2012 R3, Microsoft Dynamics AX 2012 R2, Microsoft Dynamics AX 2012 Feature Pack, Microsoft Dynamics AX 2012

Click Preprocessing upgrade checklist > Prepare application data for preprocessing > Unit conversions

Use this form to define how the company-specific unit conversions that existed for the company-specific units of measure are consolidated for shared units of measure.

Unit conversions define conversion formulas between units of measure. Each unit of measure has one unit conversion associated with it.

If the company-specific units of measure that the shared units of measure are derived from had different unit conversions associated with them, you must consolidate the unit conversions for each shared unit of measure. The unit conversions can differ in one or more of the following details:

  • Factor

  • Additional quantity

  • Rounding information


If you change the factor, the additional quantity, or the rounding information for a shared unit conversion from what existed in the company-specific unit conversion, the changes also show in the existing data in the system.


The definition of shared units of measure must be completed in the Preprocess units form before you can begin this task.

The following tables provide descriptions for the controls in this form.




Check for validation errors before you set the unit conversions to ready for upgrade.

Set ready for upgrade

Set ready for upgrade when you have resolved all validation errors.



Partition key

Select a data partition for preprocessing.


This control is available only if you are upgrading to Microsoft Dynamics AX 2012 R2 or AX 2012 R3.

Product number

If a unit of measure is associated with an item in the preexisting dataset, the item number is listed as a product.

From unit (shared)

The unit of measure that will be converted.

To unit (shared)

The unit of measure that is the target of the conversion.


The company origin of the unit conversion.


Conversion factor between the From unit (shared) and the To unit (shared).

Additional quantity

The quantity added to the unit upon conversion.


Rounding method that is used when you calculate units of measure to the To unit (shared).


An additional quantity can only be used with units that belong to the temperature unit class.

Announcements: To see known issues and recent fixes, use Issue search in Microsoft Dynamics Lifecycle Services (LCS).