# How to change the sequence number for Purchase?

Lets see how can we change the sequence number for Purchases:

Please follow the path Settings > Custom Fields & Preferences Section.

Follow the following procedure:

Select the Purchases under the option of "Set Preferences for".

Now you can select any sequence no. option from below three:

System generated voucher number.
I'll input my own voucher number.
Sequencial voucher number.

You can also add Prefix , Starting sequence and suffix.
Click on save and its done.

You can also add custom fields for Purchases., estimates, sales order etc.

You can also read about:

How to change the Invoice numbering?
How to record receipts against Invoice?
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