Material document print at time of shipment completion(After PGI in VT01N)

Hi,

I am trying to take printout of material document which is getting created during shipment completion happens i.e., when we do PGI through VT01N.

The output message is not getting triggered.

In VT01N, I have selected outbound delivery and accordingly message type created and transaction / eveny key created with WL.

Apart from that rest part is done.

I don't know what is that which is preventing the trigger of output.

Any clue,

Please revert,

Thanks,

Dipak