Over at at DynamicsCare, Amy Walsh has a nice look at How to Sort EFT Check Remittance by Vendor Name. You don’t necessarily need them in order to mail them but if you keep a copy for filing this is important.
How to Sort EFT Check Remittance by Vendor Name
Archived post from 2010. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.