postentry

from The Century Dictionary.

• noun In com., an addition to the manifest of a vessel of an item or items of merchandise found on the vessel, and not enumerated on the manifest at the time of the entry of the vessel at the custom-house.
• noun In bookkeeping, a subsequent or additional entry.

from the GNU version of the Collaborative International Dictionary of English.

• noun A second or subsequent, at the customhouse, of goods which had been omitted by mistake.
• noun (Bookkeeping) An additional or subsequent entry.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective After entry into anything.
• noun An additional or subsequent entry, of as mistakenly omitted goods in a customs report.