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Lock N/L

This page describes the 'Lock N/L' Maintenance function in the Nominal Ledger.

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The 'Lock NL' function allows you to close an accounting period to prevent the further entry of new or corrected Transactions. It does this by updating the Locking setting in the System module. As well as updating the Locking setting, the function will assign a unique Sequence Number to every Transaction in the newly locked period. Sequence Numbers will be assigned to Transactions in Transaction Date order, so that for example the Transaction created from a Sales Invoice on a particular date might be followed in the sequence by the Transaction created from a Purchase Invoice on the same date. The sequence will begin at 1 and will be reset back to 1 at the beginning of each Fiscal Year. Assigning Sequence Numbers to Transactions is a legal requirement in some countries.

You can have Sequence Numbers printed instead of Transaction Numbers in the Nominal Ledger report and the Transaction Journal. To do so, print them using the

Don't Print Transaction Prefix option. If you need Sequence Numbers to be printed in Transaction forms, add the "Sequence" field to the Form Template.

Note that this function will only add Sequence Numbers to Transactions in the Fiscal Year containing the date that you specify. After locking a particular period you will not be able to lock an earlier one. The date that you specify does not need to be the last date of a month or a year. For example, you might choose to run the function monthly. If your Fiscal Year runs from January to December, running the function with January 31 as the specified date will set January 31 as the lock date in the Locking setting and will add Sequence Numbers to all Transactions from January. It will not add Sequence Numbers to any Transactions from the previous December that do not have them because December is in the previous Fiscal Year. Running the function again with February 28 as the specified date will set February 28 as the lock date and will add Sequence Numbers to all Transactions from February. Running the function for a third time with April 30 as the specified date will set April 30 as the lock date and will add Sequence Numbers to all Transactions from March and April. If you do need to add Sequence Numbers to Transactions in a previous Fiscal Year, you will need to change to an earlier lock date in the Locking setting first (e.g. if you need to add Sequence Numbers to Transactions in the previous December, set the lock date back to November 30). You will only be able to do this if you have logged in as a Global User or Person belonging to an Access Group in which Full access has been granted to the 'Change System Locking' Action.

Until
Paste Special    Choose date
Specify here the last date of the period that you want to be locked. The date that you specify here will be copied to the Lock Transactions, Lock Others, Lock Sales Invoices and Lock Purchase Invoices fields in the Locking setting. This will mean you will no longer be able to enter a transaction of any kind with a Transaction Date that is on or before this date.

If you specify a date that is earlier than the Lock Transactions date already in the Locking setting, the function will have no effect.
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Maintenance functions in the Nominal Ledger:

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