User Exit Maintenance Order Business Completion

Hello Gurus,

User Exit IWO10004 triggers when TECO the Maintenance order.

What is the User Exit which can triggers when Business Completion?

My requirement is I want to restrict the Business Completion only for TECO orders,

Currently I even REL order also can be CLSD by business completion which is bypassing TECO status.

how can I restrict this?

Please advice

Thanks

Ashok