Technical Completion of ABAP List-Based PI Sheets 
Use
If a process needs to be canceled, for example, due to a malfunction, the PI sheet controlling the execution of this process also needs to be canceled.
You can cancel a PI sheet by assigning the status Technically complete to it; see
Setting ABAP List-Based PI Sheets to Technically Complete.Implications
When you set the status of a PI sheet to Technically complete, the system creates and sends a corresponding message on the control recipe status (message category PI_CRST) which triggers the following changes:
This means that the phases can be changed again and a new control recipe can be created for them.
You need to set the status of your PI sheets to Technically complete or Complete if you want to