# Debit Memo - Ref Invoice unable to key

**URL:** <https://www.epiusers.help/t/debit-memo-ref-invoice-unable-to-key/67971>\
**Category:** Epicor ERP 10\
**Tags:** e10\
**Created:** [June 10, 2020, 1:32am UTC](https://www.epiusers.help/t/debit-memo-ref-invoice-unable-to-key/67971 "2020-06-10T01:32:59Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![anon51084001](https://www.epiusers.help/letter_avatar_proxy/v4/letter/a/848f3c/32.png) [@anon51084001](https://www.epiusers.help/u/anon51084001)\
**Post date:** [June 10, 2020, 1:32am UTC](https://www.epiusers.help/t/debit-memo-ref-invoice-unable-to-key/67971/1 "2020-06-10T01:32:59Z")

</div>

Hello everyone,

I unable to select the Ref invoice in AP Invoice entry during generate debit memo. Please advice.

 ![image](https://www.epiusers.help/uploads/default/original/3X/4/0/4094c35e4851d622c6a2d66cebea8ee2ea8b8e0b.jpeg)

---

<div class="post-metadata">

**Author:** ![Jonathan](https://www.epiusers.help/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@Jonathan](https://www.epiusers.help/u/Jonathan)\
**Post date:** [June 10, 2020, 2:09pm UTC](https://www.epiusers.help/t/debit-memo-ref-invoice-unable-to-key/67971/2 "2020-06-10T14:09:26Z")

</div>

If the invoice already has lines you cannot use the Invoice Reference.