If this is a part number or SKU, a proper post would involve updating the stock level in your Warehouse Management System (WMS) under the "Receipts" or "Adjustments" tab.
Knowing if this is for a financial ledger, a legal notice, or a specific software platform will help me give you the exact steps.
This format (specifically the 12236 prefix) is sometimes used in specific county parcel records or case filings. A "proper post" here might mean physically posting a notice on a property or entering it into a court registry.
If this is a General Ledger (GL) account, cost center, or internal order number, you usually enter it into the "Account" or "Reference" field of a journal entry.