---
title: "Insert Or Update Customer"
method: PUT
path: "/Customers/UpsertCustomer"
tags: ["Customers"]
deprecated: true
---

# Insert Or Update Customer

`PUT /Customers/UpsertCustomer`

> **Deprecated.**

This endpoint allows tenants to insert new customers or update attributes for existing customers.

## Request body

- OptimoveAPIModelsUpsertCustomerRequestPayload
  - `CustomerID` string, required
  - `Attributes` OptimoveAPIModelsCustomerAttributePayload[], nullable
    - `RealFieldName` string, required
    - `Value` string, nullable
  - `CallbackURL` string, nullable

## Response `202`

Accepted

## Other responses

- `500` — Server Error

---

[API](https://skmtc.net/optimove/apis/optimove-api.md) · [All operations](https://skmtc.net/optimove/apis/optimove-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/optimove/optimove-api/versions/fc55c5b1bec5/schema)