ActionBrazeUpdated September 2026

How do I update Braze user attributes?

Short answer: You can update user attributes in Braze by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Braze Update User Attributes action to a workflow, map its 6 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Update User Attributes in Braze — start free
Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

FieldTypeRequiredDescription
External User ID
external_id
stringRequired
Email
email
stringOptionalThe email address. Used as the recipient or identifier depending on context.
Phone
phone
stringOptionalPhone number in E.164 format (with country code, no spaces).
First Name
first_name
stringOptionalContact's first (given) name.
Last Name
last_name
stringOptionalContact's last (family) name.
Custom Attributes (JSON)
custom_attributes
stringOptional{"plan":"premium","mrr":99}
Sample request
{
"external_id": "{{trigger.external_id}}",
"email": "e.g. user@example.com",
"phone": "e.g. +14155551234",
"first_name": "e.g. Jane",
"last_name": "e.g. Doe"
}
Returns
{
"message": "success",
"attributes_processed": 1
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Update User Attributes.

Any of these apps can fire this action as part of a workflow.

FAQ

Questions about Update User Attributes.

What does the Update User Attributes action do in Braze?
Upserts user-level attributes (plan tier, country, signup_date, lifetime_value). Drives Braze segmentation. The standard "external state changed → reflect in Braze" sync action for keeping audience filters accurate.
What inputs does Update User Attributes require?
Required: External User ID. Every input accepts a static value or a variable from any upstream node in your workflow.
Can I use dynamic inputs from earlier workflow nodes?
Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.
What happens if Braze returns an error?
The run history shows the failed step with its input and the error message Braze returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.
Does Update User Attributes support batch operations?
Run Update User Attributes inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within Braze's rate limits.
More actions

Other Braze actions.

Update User Attributes in Braze — start free