I am trying to run the Create Migration Workspace tool after creating the initial Data Mapping spreadsheet. I have done this previously for a water data migration, but am not running into an issue with water and sewer asset packages, so I don't think it's specific to the Sewer Essentials Asset Package. Here's what I've tried already:
-Initially upgraded to 3.7 and tried the Pre-Release 3.7 UDMS toolbox (Got a different error on this one)
-Uninstalled ArcGIS Pro and did a fresh install of ArcGIS Pro 3.5.6 (no UDMS toolbox for 3.6).
-Using UDMS Toolbox 3.5.1
-Run Create Migration Workspace within project that contains maps, and also in an empty project after seeing this post from 2023.
-Run on project saved to local C: Drive because I thought the default file path with spaces might be throwing it off.
However, none of these attempts has produced a successful run of the tool. Here is a list of the errors I am getting:
Start Time: Monday, April 27, 2026 11:26:37 AM
ArcGIS Pro 3.5.6.57366
udms 3.5.1
Executing from ArcGIS Pro, 0 map(s), activeMap = False
ERROR 999999: Something unexpected caused the tool to fail. Contact Esri Technical Support (http://esriurl.com/support) to Report a Bug, and refer to the error help for potential solutions or workarounds.
The domain was not found. [Validation Status]
The domain was not found. [Structure_Sewer_Storm_Casing_Diameter_Metric]
The domain was not found. [Structure_Sewer_Storm_Casing_Diameter]
The domain was not found. [Sewer_System_Valve_Diameter_Metric]
The domain was not found. [Sewer_Relief_Valve_Diameter_Metric]
The domain was not found. [Sewer_Relief_Valve_Diameter]
The domain was not found. [Sewer_Outlet_Diameter_Metric]
The domain was not found. [Sewer_Material]
The domain was not found. [Sewer_Main_Diameter_Metric]
The domain was not found. [Sewer_Main_Diameter]
The domain was not found. [Sewer_Lateral_Diameter_Metric]
The domain was not found. [Sewer_Lateral_Diameter]
The domain was not found. [Sewer_Flow_Valve_Diameter]
The domain was not found. [Sewer_Fitting_Diameter_Metric]
The domain was not found. [Sewer_Controllable_Valve_Diameter]
The domain was not found. [Sewer_Cleanout_Access_Diameter_Metric]
The domain was not found. [Sewer_Cleanout_Access_Diameter]
The domain was not found. [Sewer_Check_Valve_Diameter_Metric]
The domain was not found. [Pipeline_Valve_Status]
The domain was not found. [Operable_Status]
The domain was not found. [Network_5_UnknownAssetType]
The domain was not found. [Network_5_TierName]
The domain was not found. [Network_5_TerminalNames]
The domain was not found. [Network_5_IsSubnetworkController]
The domain was not found. [Network_5_IsDirty]
The domain was not found. [Network_5_IsConnected]
The domain was not found. [Network_5_FlowDirection]
The domain was not found. [Network_5_AssociationStatus]
The domain was not found. [Asset_Type_Structure_Line_Sewer_Storm_Casing]
The domain was not found. [Asset_Type_Sewer_Line_Lateral]
The domain was not found. [Asset_Type_Sewer_Line_Inverted_Siphon]
The domain was not found. [Asset_Type_Sewer_Line_Gravity_Main]
The domain was not found. [Asset_Type_Sewer_Line_Force_Main]
The domain was not found. [Asset_Type_Sewer_Junction_Object_Pump]
The domain was not found. [Asset_Type_Sewer_Junction_Object_Monitoring]
The domain was not found. [Asset_Type_Sewer_Junction_Fitting]
The domain was not found. [Asset_Type_Sewer_Junction_Dropshaft]
The domain was not found. [Asset_Type_Sewer_Device_Treatment]
The domain was not found. [Asset_Type_Sewer_Device_System_Valve]
The domain was not found. [Asset_Type_Sewer_Device_Station]
The domain was not found. [Asset_Type_Sewer_Device_Service_Connection]
The domain was not found. [Asset_Type_Sewer_Device_Relief_Valve]
The domain was not found. [Asset_Type_Sewer_Device_Outlet]
The domain was not found. [Asset_Type_Sewer_Device_Manhole]
The domain was not found. [Asset_Type_Sewer_Device_Grease_Trap]
The domain was not found. [Asset_Type_Sewer_Device_Cleanout]
The domain was not found. [Asset_Type_Sewer_Device_Check_Valve]
The domain was not found. [Asset_State]
The domain was not found. [Asset_Lifecycle_Status]
The domain was not found. [AP_Traversability_Scope]
The domain was not found. [AP_Trace_Types]
The domain was not found. [AP_Topology_Types]
The domain was not found. [AP_Tier_Types]
The domain was not found. [AP_Terminal_Traversability]
The domain was not found. [AP_Terminals_Classes]
The domain was not found. [AP_Subnetwork_Types]
The domain was not found. [AP_Subnetwork_Propagation]
The domain was not found. [AP_Subnetwork_Operators]
The domain was not found. [AP_Subnetwork_Functions]
The domain was not found. [AP_Subnetwork_Filters]
The domain was not found. [AP_Subnetwork_EditModes]
The domain was not found. [AP_Subnetwork_Combinations]
The domain was not found. [AP_Rule_Types]
The domain was not found. [AP_Linear_Classes]
The domain was not found. [AP_Edge_Policy]
The domain was not found. [AP_Domain_Networks]
The domain was not found. [AP_Boolean]
The domain was not found. [AP_Attribute_Types]
The domain was not found. [AP_AttributeRule_Types]
The domain was not found. [AP_Association_Types]
The domain was not found. [AP_Association_Semantics]
The domain was not found. [AP_Association_Roles]
The domain was not found. [AP_Association_Classes]
The domain was not found. [AP_All_Classes]
Failed to execute (ImportXMLWorkspaceDocument).
Failed script Create Migration Workspace...
Failed to execute (CreateMigrationWorkspace).
Failed at Monday, April 27, 2026 11:28:12 AM (Elapsed Time: 1 minutes 34 seconds)
Can you share your inputs? I can try to repo here and see what is going on.