Typically a period is locked after key financial obligations are lodged to the ATO. Locking a period means not allowing users to create, edit or void transactions dated before the locked date. Lock Dates can only be accessed by users on a Status of Advisor.

Xero has two types of Lock Dates:

1. Partial Lock > locks transactions for all users except for users on Advisor Status;
   Used after preparing and lodging Activity Statements.
2. Full Lock > locks transactions for all users;
   Used after preparing and lodging Tax Returns and Conversion Balances.

Set up and Remove Lock Dates

1. In Xero go to Accounting > Advanced
   
   è  The Advanced Accounting settings screen opens
   
   
   
   
2. Click on [Financial settings]
   
   è  The Financial Settings screen opens
   
   
   
   
3. Type/Type Over, or delete the lock date
4. Click on [Save]