Dynamics Community Forum Thread Details

Hi everyone,

I am encountering an issue in Dynamics 365 CRM / Project Operations when creating a Quote Line.

Error

Can't create or update the 'Hour' unit because the unit group 'Time' is externally maintained

Plugin trace:

Microsoft.Dynamics.SCMExtended.Plugins.UnitOfMeasurePreCreate

Variables information:
Symbol = UOM-001098
Is base unit = False

SCM plugin exception:
Can't create or update the 'Hour' unit because the unit group 'Time' is externally maintained

The exception originates from:

Microsoft.Dynamics.SCMExtended.Plugins.UnitOfMeasurePreCreate

and causes the Quote Line creation to fail and roll back.

What I have verified

The product being added to the quote is configured as:

Unit Group = Length
Default Unit = m

The product is not using the Time unit group.
In Unit Groups, both Length and Time exist and are marked as Externally Maintained = Yes.
Under the Time unit group, the standard units already exist:

TimeBase (UOM-001007)
hr
min
day
sec

The error references a different UOM symbol:

UOM-001098

which does not appear to be the existing TimeBase unit.

The Quote Line is not created after the error, confirming the transaction is rolled back.

Observation

Although the product uses the Length unit group, the Quote Line creation process appears to invoke Project Operations / SCM logic that attempts to create or update an Hour unit under the Time unit group.

The trace also shows Project Operations workflows executing during Quote Line creation:

Project Service - Quote Line - Clear and Lock NTE Field if not Time & Material
Project Service - Require Billing Method for Quote Project Line
Project Service - PostCreate of msdyn_projectparameter

Questions

Has anyone encountered a scenario where Quote Line creation triggers creation/update of the Hour UOM even when the product uses a different Unit Group?
Could this be caused by a missing or incorrect Unit of Measure mapping from an integration (Business Central / Dual-write / Data Integration)?
Are there Project Operations settings (Transaction Categories, Billing Method, Project Parameters, etc.) that could force the system to resolve the Time/Hour unit during Quote Line creation?
Any solutions package that needs to be installed in the environment

Any guidance on where to investigate next would be greatly appreciated.

Thank you.

Categories:

Dynamics 365 Customer Insights - Data

Dynamics 365 Customer Voice

Dynamics 365 Customer Insights - Journeys

Microsoft Dynamics CRM

Outbound to Real-Time Transition

Dynamics 365 Sales