The path for a cart uses a standard format that specifies the time that cart was generated, a sequence number that is useful for a PIN, and an optional suffix value that is the Cart_Token.

The path starts with “Cart”.

Then the time from year to second. Each part is zero padded as required.

Then a sequence number that is always 9 digits separated with underscores.

Optionally the Cart_Token is used when a command is being issued to the cart. It is not required otherwise and is no longer useful once the cart is marked done.