# Invoice number and purchase order number

**URL:** <https://community.servicem8.com/t/invoice-number-and-purchase-order-number/45>\
**Category:** API & SDK\
**Created:** [September 16, 2025, 2:28pm UTC](https://community.servicem8.com/t/invoice-number-and-purchase-order-number/45 "2025-09-16T14:28:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![developer](https://avatars.discourse-cdn.com/v4/letter/d/bcef8e/32.png) [@developer](https://community.servicem8.com/u/developer)\
**Post date:** [September 16, 2025, 2:28pm UTC](https://community.servicem8.com/t/invoice-number-and-purchase-order-number/45/1 "2025-09-16T14:28:10Z")

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**Originally posted by Andre Sovde**

Where can we find the invoice number for a job via the API?

How do we populate a purchase order number as it seems that all requests I do comes up with the purchase\_order\_number field on the job as empty?