# 520010: Bulk trait upsert failed

Log Type: TWILIO

Log Level: ERROR

## Description

Bulk trait upsert encountered validation discrepancies.

### Possible causes

* Missing fields, unmatched data types, or duplicate mapping keys within the batch payload
* Malformed JSON structure
* No valid traits
* No Identifiers

### Possible solutions

* Validate the batch locally prior to submission
* Implement granular error handling to process valid records while gracefully managing exceptions
* Register trait in trait settings