For the Migration from AM 7.1 to 8.1 a Migration Utillity Program to Export the DB on 7.1 should be available. Where can I find this Software tool?
Since you can only migrate from 7.1.4.x to 8.1.x.x, (not 8.2.x or higher)
It is part of:
the 8.1 extras download
Or, if you are on a version above 8.1 base, the migration tool is patch-specific:
it is bundled inside each patch zip file, from 8.1.0.x to 8.1.1.x.0. This example is 8.1 sp1 patch 13 zip.
After migrating to 8.1.x, the system can be patched up to 8.3.
Retrieving data ...