Ranjula Herath asked if this sentence sounds correct:
"Last week some of our shipments parted."
And the short answer is no, it doesn't.
I am guessing that the writer of this sentence wanted to communicate that the shipments had left the place where they started and were on their way to their destination. However, if you look at the four possible meanings of the verb "to part," shown below, you will see that they are more about separating, or splitting apart, than leaving.
1: to separate into two or more parts that move away from each other [no obj] ▪ The crowd parted to let the president through.▪ The rain stopped and the clouds parted.
2 [+ obj] : to separate (the hair on a person's head) into two parts on each side of a line by using a comb ▪ She parts her hair on the side.
3formala [no obj] : to leave each other ▪ The two lovers parted at dawn.
4 [no obj] somewhat formal: to end a relationship ▪ The band parted after 10 successful years of performing together.
In your sentence about the shipments, it would be better to use the verb "to leave," or the more formal alternative, "to depart," as shown in these two examples:
Last week some of our shipments left. (informal)
Last week some of our shipments departed. (formal)