Error when using external system import tool to try and update status of sub-tasks

[Gngo]

I've been trying to update the status of subtasks linked to a parent but keep receiving this error.

"Unexpected failure occurred. Importer will stop immediately. Data may be in an unstable state: Failed to remove subtasks [OEIT-39] parents. A parent of a subtask cannot be removed."

I've mapped the issue key, issue type, issue ID, parent ID, status, and summary, but keep getting the error saying the importer is trying to remove the subtask parent. Has anyone else run into this issue and worked out a solution? 

I have 806 subtasks to update, so bulk updating within Jira as opposed to via csv import is not ideal.  

[Trudy Claspill]

Hello @Gngo 

Welcome to the Atlassian community!

I tried the same thing myself in a Team Managed project and got the same error.

I tried the same thing to change the status of a sub-task in a Company Managed project and it worked.

I'm still looking for any information about why it would not work in a Team Managed project.

[Martyn Beaumont]

Did you find a solution?