Payables Invoice split to two journal batches

Summary

Payables Invoice split to two journal batches

Content

When the invoice is created with VAT, create accounting split transaction to two journal batches in GL. one wiith Y on the end one with N on the end. It seems that the expense and liabililty is created in one journal, and tax with liability in second journal.

Can you advice me, how  to prevent this beheaivours and merge it in one journal batch?

Thanks,

Alena