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| ErrorNumber | ErrorCode | ErrorText |
|---|---|---|
| 10111 | RequiredFieldMissing | A required field is missing: PredecessorProjectTaskIdentity |
| 16009 | TaskDescriptionMayNotBeSpecifiedWhenClearFlagSet | The task description may not be specified when the associated clear flag is set. |
| 54205 | ProjectTaskReferenceInvalid | A specified project task identity was incomplete. Each project task identity must specify either a project task id, project task uid or project task external system identifier. |
| 54655 | PreviousSiblingNotChildOfParent | The task identified as this task's previous sibling is not a child of the task specified as the parent task (or it is not a top level task if the specified parent task is null or being cleared). |
| 54657 | ProjectTaskNameIsRequired | The project task name is required for new project tasks. |
| 55066 | TaskPurchaseOrderSpecifiedWhenInheriting | Purchase order number may not be specified when inheriting purchase order number. |
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