not posting Exise Invice in MIGO

Dear Experts ,

I have gone through the threads but I did not found the answer

my client want Part I & Part II should post automatically

Currently Based on PR/Contract System will automatically post PO/SA , GRN +Part I (capture excise invoice),and then will go to J1IEX and post excise invoice .

Now they want it Part II (Excise invoice)also should post automatically.

I have seen the setting "define excise group " there are two tick marks (EI Capture, EI post)  but its not  picking " post excise invoice by default" so Is there any BAPI required to be implemented ?

can you please suggest  in standard system what are the setting should be done to appear EI post . because user facing problem to change every time..

Regards

Ram