Handling unit process step by step

Dear All,

We intend to use handling unit functionality.

Our FG let's say FG001 gets packed in container.

I have mapped this as following.

I have created 'Container' as code with material type VERP- Packaging Material. Maintained the required data in Sales org. tab page.

I have created packing instruction in POP1 with container as packing material & FG001 as material.

I have maintained the determination record in POF1 (Frankly I didn't understand the relevance of this step, but did cos has been suggested in several threads.)

Now I have to perform the packing process of FG001 in HU02.

But system is throwing me an error as 'No packing instruction could be found for material FG001', message no. VHUPD002.

I have stuck up there. Kind request you to help me in this, regarding any configuration & processing step, if I am missing.

Also I am few questions to get clear.

1. How to maintain the batch no. of packing material 'Container' while creating/ generating HU as my packing material is batch managed, and need to have information in which HU the batch of packing material is utilized.

2. What happens to the stock statement (MMBE)of both the materials i.e. FG001 & Container when those are get packed i.e. HU created/ generated.

Please respond urgently.

Timely answers will be rewarded.