# Calling API with external\_id reply

**URL:** https://meta.discourse.org/t/external-id-api/390573
**Category:** Development
**Tags:** rest-api
**Created:** [December 6, 2025, 7:47am UTC](https://meta.discourse.org/t/external-id-api/390573 "2025-12-06T07:47:04Z")
**Posts on this page:** 1
**Showing post:** 3

<div class="post-metadata">

### Author: ![ikaros](https://avatars.discourse-cdn.com/v4/letter/i/bbe5ce/32.png) [@ikaros](https://meta.discourse.org/u/ikaros)
#### Post date: [December 6, 2025, 8:26am UTC](https://meta.discourse.org/t/external-id-api/390573/3 "2025-12-06T08:26:57Z")

</div>

If User A changes their name via Discourse, and at the same time User B also changes their name to User A’s previous name, is it possible that retrieving User A’s name from the cache could result in User A’s replies being associated with User B?

---

_[View the full topic](https://meta.discourse.org/t/external-id-api/390573)._