# Cannot create serial number if part is received from subcontracting

**URL:** <https://www.epiusers.help/t/cannot-create-serial-number-if-part-is-received-from-subcontracting/60554>\
**Category:** Epicor ERP 10\
**Tags:** epicor\
**Created:** [October 7, 2019, 3:27pm UTC](https://www.epiusers.help/t/cannot-create-serial-number-if-part-is-received-from-subcontracting/60554 "2019-10-07T15:27:06Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Siimsusi](https://www.epiusers.help/user_avatar/www.epiusers.help/siimsusi/32/15764_2.png) [@Siimsusi](https://www.epiusers.help/u/Siimsusi)\
**Post date:** [October 7, 2019, 3:27pm UTC](https://www.epiusers.help/t/cannot-create-serial-number-if-part-is-received-from-subcontracting/60554/1 "2019-10-07T15:27:06Z")

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Hi,

We use serial numbers tracking for many parts. This is a first time when we want to create serial number, when we receive it from subcontracting PO.  
Serial numbers are assigned by subcontractor and we just want add these numbers to the Epicor on the Receipt Entry -\> Select Serial Numbers -\> Create Serial Numbers. Problem is that the serial number field and the" Add" button are both disabled!  
We have received many purchased parts like this and there is no problem.  
Any idea is there any restrictions for this?  
I am not 100% sure that this problem is related to the subcontracting, but I have compared this manufactured part with other purchased parts and cannot find other difference.

Br,  
Mehis

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**Author:** ![jeowings](https://www.epiusers.help/letter_avatar_proxy/v4/letter/j/b5ac83/32.png) [@jeowings](https://www.epiusers.help/u/jeowings)\
**Post date:** [October 7, 2019, 5:17pm UTC](https://www.epiusers.help/t/cannot-create-serial-number-if-part-is-received-from-subcontracting/60554/2 "2019-10-07T17:17:32Z")

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Does the subcontract operation have the serial number checkbox enabled? Not sure this is an option in the job or not, but that is a guess for you. If it is not checked then try checking it and see what happens. I am not sure if it is limited or not with subcontract operations.

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<div class="post-metadata">

**Author:** ![Siimsusi](https://www.epiusers.help/user_avatar/www.epiusers.help/siimsusi/32/15764_2.png) [@Siimsusi](https://www.epiusers.help/u/Siimsusi)\
**Post date:** [October 7, 2019, 8:37pm UTC](https://www.epiusers.help/t/cannot-create-serial-number-if-part-is-received-from-subcontracting/60554/3 "2019-10-07T20:37:42Z")

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Hi Josh, thank you for the reply.  
Checkbox was checked, but I found solution for this.  
As the subcontracting is related to the Job, I must use “Serial number Assignment” first and then I can use assigned serial numbers in the Receipt Entry.  
Case closed 🙂