# 19011: When updating a contact, invalid JSON syntax or invalid field that cannot be updated by this endpoint

Log Type: APPLICATION

Log Level: ERROR

## Description

Invalid JSON or fields other than first\_name, middle\_name, last\_name, legal\_name, preferred\_name, unique\_customer\_provided\_id or custom\_fields exist in update contact request

### Possible causes

User provided an invalid JSON or trying to update fields other than first\_name, middle\_name, last\_name, legal\_name, preferred\_name, unique\_customer\_provided\_id or custom\_fields of a contact

### Possible solutions

Fix JSON input or change update contact request to update only first\_name, middle\_name, last\_name, legal\_name, preferred\_name, unique\_customer\_provided\_id or custom\_fields