---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/520034#article
headline: "520034: Identifiers skipped during bulk add"
url: https://www.twilio.com/docs/api/errors/520034
inLanguage: en
dateModified: 2026-04-01T03:32:01.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 520034: Identifiers skipped during bulk add

Log Type: TWILIO

Log Level: WARNING

## Description

Some batch items failed validation during a bulk upsert.

### Possible causes

* Identifiers clash with existing profiles

### Possible solutions

* Investigate failed records; fix conflicts and re-upload only those