I have few answers in ind but not sure.
Also dont know how to reproduct and test this scenario..
Map shape will process each record individually.
Map runs through each record and applies map logic individually either you send 20 or 20m However, the best practice is to split and batch high volume document before sending to a map.
what will be the number of output document??
one document or destination profile's max occurs?
When it comes out of a map, it will deliver as each document. I mean a document with 20 records as you batched.
Retrieving data ...