TIP: I wanna make more shipments to my friend.

You may be out of shipments or hit the 50K limit.

Your friend may have little resources

You can continue to ship with a set of market trades as shown below:

R=Rum, L=Lumber, G=Gold, H1= Haven 1, H2 = Haven 2

The general concept is: Trade the little for more > 5R for 10G, Then trade the 10G for 20R, Repeat

Resource shipments beyond the limts

So this set of trades moved 50K Rum from Haven 2 to Haven 1 without any direct shipments and without any limit restrictions.