Max System.Title length issue

[djbyrd]

FYI: Came across an issue with a work item that had a max length (256 character) title. While this is allowed in the UI, it generates an error in the work item tracking client (see below). Editing the title doesn't help because the original revision still fails. I worked around this with a regex field map, not sure why the pattern required the post group match but it returned the entire string without it.

          {
            "FieldMapType": "RegexFieldMap",
            "ApplyTo": [
              "*"
            ],
            "pattern": "^(.{0,255}).*",
            "replacement": "$1",
            "sourceField": "System.Title",
            "targetField": "System.Title"
          }

[10:39:56 INF] [16.2.11] ===============================================================
[10:39:56 ERR] [16.2.11] Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.Save(SaveFlags saveFlags)
at MigrationTools.TfsExtensions.SaveToAzureDevOps(WorkItemData context) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\TfsExtensions.cs:line 83
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.ReplayRevisions(List`1 revisionsToMigrate, WorkItemData sourceWorkItem, WorkItemData targetWorkItem) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 833
[10:39:56 INF] [16.2.11] ===============================================================
[10:39:56 DBG] [16.2.11] TfsExtensions::SaveToAzureDevOps
[10:39:56 DBG] [16.2.11] TfsExtensions::SaveToAzureDevOps: ChangedBy: [name], AuthorisedBy: [name]
[10:39:56 WRN] [16.2.11] Work Item is not ready to save as it has some invalid fields. This may not result in an error. Enable LogLevel as 'Debug' in the config to see more.
[10:39:56 DBG] [16.2.11] --------------------------------------------------------------------------------------------------------------------
[10:39:56 DBG] [16.2.11] --------------------------------------------------------------------------------------------------------------------
[10:39:56 DBG] [16.2.11] TfsExtensions::ToJson
[10:39:56 DBG] [16.2.11] Invalid Field Object:
{
"WorkItemId": 0,
"CurrentRevisionWorkItemRev": 0,
"CurrentRevisionWorkItemTypeName": "Test Case",
"Name": "Title",
"ReferenceName": "System.Title",
"Value": "[256 long string]",
"OriginalValue": "",
"ValueWithServerDefault": "[256 long string]",
"Status": 13,
"IsRequired": true,
"IsEditable": true,
"IsDirty": true,
"IsComputed": false,
"IsChangedByUser": true,
"IsChangedInRevision": true,
"HasPatternMatch": false,
"IsLimitedToAllowedValues": false,
"HasAllowedValuesList": false,
"AllowedValues": [],
"IdentityFieldAllowedValues": [],
"ProhibitedValues": []
}
[10:39:56 DBG] [16.2.11] --------------------------------------------------------------------------------------------------------------------
[10:39:56 DBG] [16.2.11] --------------------------------------------------------------------------------------------------------------------
[10:39:56 ERR] [16.2.11] Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.Save(SaveFlags saveFlags)
at MigrationTools.TfsExtensions.SaveToAzureDevOps(WorkItemData context) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\TfsExtensions.cs:line 83
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 587
Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem.Save(SaveFlags saveFlags)
at MigrationTools.TfsExtensions.SaveToAzureDevOps(WorkItemData context) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\TfsExtensions.cs:line 83
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 587
[10:39:56 ERR] [16.2.11] Could not save migrated work item XXXX, an exception occurred.
System.AggregateException: One or more errors occurred. ---> Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 637
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.InternalExecute() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 200
---> (Inner Exception #0) Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 637<---

[10:39:56 WRN] [16.2.11] The following items could not be migrated: XXXX
[10:39:56 FTL] [16.2.11] Error while running TfsWorkItemMigrationProcessor
System.AggregateException: One or more errors occurred. ---> Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 637
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.Wait()
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.InternalExecute() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 226
at MigrationTools.Processors.Infrastructure.Processor.Execute() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools\Processors\Infrastructure\Processor.cs:line 99
---> (Inner Exception #0) Microsoft.TeamFoundation.WorkItemTracking.Client.ValidationException: TF237124: Work Item is not ready to save
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.d__31.MoveNext() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 637<---

[10:39:56 INF] [16.2.11] TfsWorkItemMigrationProcessor completed in 00:00:00
[10:39:56 ERR] [16.2.11] TfsWorkItemMigrationProcessor The Processor MigrationEngine entered the failed state...stopping run
[10:39:56 INF] [16.2.11] Command ExecuteMigrationCommand completed in "00:00:25.1272640"
[10:39:56 INF] [16.2.11] Check the logs for errors: C:\path\MigrationTools-16.2.11\logs\20250826103927

[MrHinsh]

Your regex field map is a good solution. We have the https://devopsmigration.io/docs/reference/tools/string-manipulator-tool/ but it cant target specific fields.