Which Number Sequences Should Be Continuous Ax 2012

Basic> Setup> Number sequences> Number sequences

Use the Number sequencesform to create and modify number sequences. Number sequences handle automatic allocation of voucher numbers, invoice numbers, and journal numbers used by Microsoft Dynamics AX.

Before you set up number sequences, you should decide how to structure them.

Set up number sequences for specific modules on the Number sequencestab in the Parametersform under Setupin the different modules.

Navigating the form

The following tables provide descriptions for the controls in this form.

Tabs

Tab	Description
Overview tab	Provides an overview of available number sequences and shows if they are active. You can modify existing number sequences or create new number sequences.
General tab	Displays more information about the selected number sequence. In addition to the options on the Overviewtab, you can end a number sequence or specify whether it can be updated manually or changed to a higher or lower number.
Cleanup	Click the tab for more help.
Performance	Click the tab for more help.

Fields

Field	Description
Number sequence code	Code used for the current number sequence.
Name	Enter a short description of how and where to use the number sequence.
Smallest	Enter the lowest possible value that can be used for automatic number generation for the current number sequence.
Largest	Enter the largest possible value that can be used for automatic number generation for the current number sequence.
Next	Enter the next value that will be used for automatic number generation for the current number sequence.
Format	Specify a format for the number sequence. For example, if you want to indicate the year in the customer invoice number, create a format for the invoice number sequence. Use the '#' character for numbers and the '&' character for letters. For example, the format #####_2009 gives you the sequence 00001_2009, 00002_2009, and so on.
In use	Indicates whether the number sequence is being used.
Stopped	Select this check box to stop using the selected number sequence.
Manual	Select this check box to require manual entry of numbers. Number sequences will not be generated automatically.
Continuous	Select this check box for a continuous sequence.
To a lower number	Allow users to change an automatically generated number to a lower number.
To a higher number	Allow users to change an automatically generated number to a higher number.
Clean up	When this option is selected, the number sequence is cleaned up automatically. This option is automatically selected when the number sequence is continuous, and should not be cleared. For continuous number sequences, the next available number from the sequence is used when a transaction is entered. If a number is generated but the transaction fails, automatic cleanup allows the number to be used again. You can set up a time interval for automatic cleanup in the Intervalfield. If a user has a power failure, system failure, or other unexpected failure of the client while a number is being generated, cleanup must be performed manually on either the current number sequence or all number sequences. To manually clean up number sequences, click the Clean upbutton. Note If you do not select the automatic cleanup option, make sure that you run a nightly batch job to clean up number sequences.
Interval	Enter the interval at which cleanup should be performed. Enter 24 for a cleanup every 24 hours. The cleanup will be performed the first time that a number is generated after 24 hours has passed. Important If you leave the field blank, cleanup is performed every time that the number sequence is used. This can cause a significant drop in performance.
Date	Most recent date and time that cleanup was performed.
Preallocation	Pre-allocates numbers that are contained in system memory.
Quantity of numbers	Quantity of numbers that will be loaded into system memory.

Buttons

Button	Description
References	Shows where the selected number sequence is used.
List	Lists all active, blocked, and released numbers in the selected number sequence.
Clean up	Use a query to clean up number sequences. If, for example, a number in a number sequence was not used because of an error during update or a power failure, the cleanup process makes the number available again. Note We recommend that you perform the cleanup as a batch job during non-peak hours.
History	Lists all changes that were made to the number sequence setup.
Wizard	Helps create number sequences in Microsoft Dynamics AX.

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