Does Mendix support JTA/XA

The business requirement is, we need create a JTA/XA transaction among Mendix DB & external DB. we can assume both  DBs has XA  JDBC drivers. In case of  it, Does Mendix support JTA transactions. If not, is there any workaround for this business need? 
1 answers

Probably not by default but you can always extend Mendix by using Java actions and accomplishing this yourself.
Look at for more information about database connectors in Mendix.