issue on APP

I m getting a problem in APP in New implimentation project.

while running APP the vendors selected in Parameters tab are not picking the House bank And their bank details which we want to credit through Bank Transfer.

Now what i need to do.

2.

After running APP vendors accouts will be cleared and G/L will be updated. If Bank refused to pay some of vendors (could be any reason ex: vendors are not doing any transaction from a long period).

We can reset those vendor from cleared item to Open. Then what about the G/L accounts.

3. Is there any T.Code for Openeing year for PCA

Thanks

shivaji