RTI and employees posted abroad

Can RTI cope with employees seconded abroad?

I'm thinking about the practicalities of reporting foreign tax offset against PAYE and how this is all going to be reported at the year-end (or is this back to paper amendments?)

Secondly, where an employer assumes an A1 will be issued and it is subsequently refused (or vice versa), are there going to have to be resubmissions which might flag a company for a control visit?

We are very active in this area, and I'm not sure if anyone has got any answers on this, but it is yet another aspect which is raising more questions than I really want.