# adding serial numbers to exsisting items on nav3.7

**URL:** <https://www.dynamicsuser.net/t/adding-serial-numbers-to-exsisting-items-on-nav3-7/9895>\
**Category:** Developers Forum\
**Created:** [April 20, 2005, 7:04pm UTC](https://www.dynamicsuser.net/t/adding-serial-numbers-to-exsisting-items-on-nav3-7/9895 "2005-04-20T19:04:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![bernbird](https://avatars.discourse-cdn.com/v4/letter/b/839c29/32.png) [@bernbird](https://www.dynamicsuser.net/u/bernbird)\
**Post date:** [April 20, 2005, 7:04pm UTC](https://www.dynamicsuser.net/t/adding-serial-numbers-to-exsisting-items-on-nav3-7/9895/1 "2005-04-20T19:04:48Z")

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what would be the best way to add serial number tracking to items already in inventory?

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**Author:** ![FormerMember](https://avatars.discourse-cdn.com/v4/letter/f/74df32/32.png) [@FormerMember](https://www.dynamicsuser.net/u/FormerMember)\
**Post date:** [April 21, 2005, 1:18pm UTC](https://www.dynamicsuser.net/t/adding-serial-numbers-to-exsisting-items-on-nav3-7/9895/2 "2005-04-21T13:18:27Z")

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Normally, the best way is to use the Item Reclass. Journal as it will take your costs and flow them from the old S/N to the new S/N. The only problem is that without modification (in 3.70 anyways), this Journal doesn’t like to change from Blank to non-Blank. (Which is what I think you want to do here)