This task is one section of Odoo accounting: nine everyday tasks, step by step, with 8 related tasks on one page.
1. Open Lock Dates
Go to Accounting → Accounting → Lock Dates. You need administrator access to Accounting. If the menu is missing, Accounting is not installed or this user cannot administer it.
2. Set Lock Everything
In the Lock Journal Entries window, set the Lock Everything date to the last day of a period you have finished, then save. The date is inclusive. Practice on a copy before you lock a live company.
3. Check a dated invoice
Create a customer invoice with an accounting date on or before that lock date. Odoo 19 does not keep that date. It moves the accounting date to the day after the lock. Entries already posted on or before the lock date also cannot be modified.
4. Correct without deleting the lock
If an invoice in an open period is wrong, issue a credit note. An accounting administrator can record a logged exception from Lock Dates. A hard lock cannot be removed. Do not delete a posted invoice to get around the date.
5. Frequently asked questions
Does a lock delete old entries?
No. It blocks changes to posted entries on or before that date. Odoo 19 also moves a new entry’s accounting date to the day after the lock.
Can some users still post?
An accounting administrator can record a logged exception. Test with the user who posts daily invoices. A hard lock cannot be removed.
Should I lock today’s date?
Lock a period you have finished. Locking today will block ordinary work.
6. Related articles and next steps
Odoo documents Lock Everything in the Odoo 19 year-end closing page. Labels can still vary with the installed accounting app.
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