DMT error Update not allowed, Job Complete when trying to uncomplete job

Error “Update not allowed, Job Complete” when trying to update the JobComplete flag to FALSE on JobHead using the dmt below. I need to update the job to uncomplete to enable changes to the job operation ProdStd minutes. I can uncomplete the job via JobClosing, but wanted to do this on mass via dmt as 2323 jobs need to be updated.
Are you able to uncomplete a job via dmt? If so, how?

I noticed you’re using Job Header. There’s another entry there in DMT for Job Complete/Closing. Give that a try and see if it works.

Yes this worked perfectly, as per the dmt below. I don’t know why I didn’t think to look for this. Many thanks.