# Customer Purchase invoice

**URL:** <https://forum.manager.io/t/customer-purchase-invoice/30392>\
**Category:** Uncategorized\
**Created:** [September 4, 2020, 8:25pm UTC](https://forum.manager.io/t/customer-purchase-invoice/30392 "2020-09-04T20:25:46Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Abuzainab](https://avatars.discourse-cdn.com/v4/letter/a/f14d63/32.png) [@Abuzainab](https://forum.manager.io/u/Abuzainab)\
**Post date:** [September 4, 2020, 8:25pm UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/1 "2020-09-04T20:25:46Z")

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Dear,

is it possible to link Purchase invoices to a customer sales invoice to calculate the profit per transaction thereafter.

and to know which item purchased for each sales invoice.

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**Author:** ![Davide](https://avatars.discourse-cdn.com/v4/letter/d/258eb7/32.png) [@Davide](https://forum.manager.io/u/Davide)\
**Post date:** [September 4, 2020, 8:32pm UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/2 "2020-09-04T20:32:24Z")

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This is the scope of keeping an inventory in accounting.

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**Author:** ![Tut](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/tut/32/3286_2.png) [@Tut](https://forum.manager.io/u/Tut)\
**Post date:** [September 4, 2020, 9:22pm UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/3 "2020-09-04T21:22:57Z")

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> [@Abuzainab](#):
>
> is it possible to link Purchase invoices to a customer sales invoice

Only if you put this information into a description or a custom field. But they will not really be “linked.” One will just have text that references the other.

> [@Abuzainab](#):
>
> to know which item purchased for each sales invoice.

No. All inventory items are assumed to be identical. They cannot be individually tracked. Manager uses the perpetual moving average cost method to determine the cost of goods sold.

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**Author:** ![Abuzainab](https://avatars.discourse-cdn.com/v4/letter/a/f14d63/32.png) [@Abuzainab](https://forum.manager.io/u/Abuzainab)\
**Post date:** [September 16, 2020, 3:01am UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/4 "2020-09-16T03:01:11Z")

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dear, i want it for non inventory items and it will be really important to know whether we enter the cost or not and to know the profit per transaction

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**Author:** ![Tut](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.manager.io/tut/32/3286_2.png) [@Tut](https://forum.manager.io/u/Tut)\
**Post date:** [September 16, 2020, 3:10am UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/5 "2020-09-16T03:10:22Z")

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Non-inventory items are not tracked at all. The program will not determine profitability by transaction. You would have to somehow calculate that yourself. What you describe is really more a pricing activity than accounting.

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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, 2:53pm UTC](https://forum.manager.io/t/customer-purchase-invoice/30392/6 "2023-01-18T14:53:21Z")

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Closed on January 18, 2023, 2:53pm UTC