How do I configure E-Tax to work with AGIS organisations in different ledgers and OUs? AP does not c

Hi,

I've read some documentation on the support site the suggests that whatever tax in charged in AR, the same will be charged in AP for an AGIS transaction. Currently the AR tax is being defined via the relationship between the AGIS Transaction Type and AR Memo Line and not by using E-Tax, however AP currently does not charge the same amount of tax as AR.  

I'm starting to think that there is some setup missing from our E-Tax module that needs to be completed in order to allow AP to mirror AR - any ideas?

The problem might not be helped by the fact that we have separate configuration owners in E-Tax for each OU, so that may be the issue as the OUs are not linked in E-Tax?