# Item Serial number and UOM in the invoice

**URL:** <https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969>\
**Category:** Uncategorized\
**Created:** [October 20, 2015, 2:26pm UTC](https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969 "2015-10-20T14:26:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![qqqqqqqq](https://avatars.discourse-cdn.com/v4/letter/q/ecae2f/32.png) [@qqqqqqqq](https://forum.manager.io/u/qqqqqqqq)\
**Post date:** [October 20, 2015, 2:26pm UTC](https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969/1 "2015-10-20T14:26:56Z")

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I would like to have a serial number column for the invoices, so that I can quickly know how many items are in a invoice. Also, it is required by law here.

Another thing that i’d like to show in the invoice is UOM (Units of Measurement), which will be different for all the items.

How can I add these two things to my invoices?

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**Author:** ![netspc](https://avatars.discourse-cdn.com/v4/letter/n/bc79bd/32.png) [@netspc](https://forum.manager.io/u/netspc)\
**Post date:** [October 20, 2015, 8:14pm UTC](https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969/2 "2015-10-20T20:14:19Z")

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Go to “Settings” \> “Custom Fields” \> “Sales Invoice”. From there, create a custom filed.

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**Author:** ![lubos](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/lubos/32/62798_2.png) [@lubos](https://forum.manager.io/u/lubos)\
**Post date:** [October 30, 2015, 12:49am UTC](https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969/3 "2015-10-30T00:49:02Z")

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> [@qqqqqqqq](#):
>
> Another thing that i’d like to show in the invoice is UOM (Units of Measurement), which will be different for all the items.

For UOM, you can go to `Inventory items` and set `Unit name` on your inventory items. Unit name will be then shown on invoices.

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**Author:** ![Ealfardan](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/ealfardan/32/63166_2.png) [@Ealfardan](https://forum.manager.io/u/Ealfardan)\
**Post date:** [January 18, 2023, 3:36pm UTC](https://forum.manager.io/t/item-serial-number-and-uom-in-the-invoice/3969/4 "2023-01-18T15:36:15Z")

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