Opex Transactions
OPEX costs are not invoiced to a counterpart — they are internal accounting transactions that record the operational costs of running a vessel against the appropriate accounts in the accounting system. The Opex Transactions module handles the posting, reviewing, and reversal of these transactions, structured analogously to the existing Bunker Transactions module.
How OPEX Posting Works
Each OPEX posting produces a set of accounting documents:
One document per posting, referencing the stock account (document type: ACC).
One document line per OPEX line, referencing the cost account for that line.
Documents and document lines are generated in both company currency and voyage currency.
Postings are generated from voyage-level OPEX data.
Pending Opex Transactions
The Pending grid shows OPEX lines that are ready to be posted. Lines appear here once the voyage has OPEX data and are awaiting accounting posting.
Columns shown in the pending grid mirror the voyage OPEX lines. From this grid, lines can be selected for posting.
Posting OPEX Transactions
To post a single OPEX transaction:
Open the Opex Transactions module.
Select the voyage or OPEX line to post.
Click Post. The Post Opex Transaction modal opens.
Confirm the details and submit. A document and document lines are created in the accounting system.
To batch-post multiple OPEX transactions:
Select multiple lines in the pending grid.
Click Post All (or the batch post action). All selected lines are posted in a single operation.
Note: OPEX lines with existing posted document lines cannot have their Opex Type changed. The Opex Type field is locked once a document line is posted against it.
Posted Transactions
The Posted grid shows all OPEX transactions that have been successfully posted. Posted transactions are auditable and show the document reference, accounts used, amounts in company and voyage currency, and posting date.
The posted grid refreshes automatically after a reversal is processed.
Reversing an OPEX Transaction
Reversing a posted transaction generates an inverted document and document lines to zero out the original posting. This follows the same reversal logic used for Bunker Transactions.
To reverse a posted transaction:
Locate the transaction in the Posted grid.
Click the three-dot menu on the transaction row.
Select Reverse.
After reversal, the reversed document's status is set to POS. The pending OPEX lines are regenerated and appear again in the pending grid.
Important: Voyage status must permit reversal. If the voyage status prevents the transaction from being reversed, the voyage status must be updated first.
Bunker Reclassification for Offhire Periods
When bunkers are consumed during an offhire period and the offhire record carries a deduction flag, those bunker costs are reclassified as OPEX in the accounting system. This is a separate Account compared to Voyage Opex. A transfer posting moves the cost from the bunker account to the OPEX account, reflecting that the cost is operational rather than voyage-related bunker consumption.
The Print Invoice option is not available for OPEX documents. OPEX transactions are internal accounting postings, not invoices.
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