---
"@context": https://schema.org
"@type": TechArticle
"@id": https://www.twilio.com/docs/api/errors/51106#article
headline: "51106: Twilsock: Active product doesn't match with service instance product"
url: https://www.twilio.com/docs/api/errors/51106
inLanguage: en
dateModified: 2026-06-09T11:00:42.000Z
author:
  "@type": Organization
  name: Twilio Developer Education Team
publisher:
  "@type": Organization
  name: Twilio
---

# 51106: Twilsock: Active product doesn't match with service instance product

Log Level: ERROR

## Description

This error occurs when your client connects with an active Twilio product context that does not match the service instance you provided. The service instance SID belongs to a different product, so Twilio rejects the request.

### Possible causes

* Your application is using a service instance SID created for a different Twilio product.
* Your access token, SDK configuration, or client initialization points to one product while the service instance belongs to another.
* You copied a service instance SID from another environment or project and used it with the wrong client configuration.
* Your application mixes multiple Twilio SDKs or product configurations and passes the wrong service instance during setup.

### Possible solutions

* Verify that the service instance SID you pass belongs to the same Twilio product your client is using.
* Check your client initialization and confirm that your access token, endpoint configuration, and service instance all reference the same product.
* Review the service instance in Console or in your application configuration and replace any SID that was copied from another product or environment.
* If you recently changed products or migrated your implementation, regenerate the correct configuration values and redeploy your application.
* Test with a newly created service instance for the intended product to confirm the mismatch is resolved.

#### Additional resources

* [Conversations documentation](/docs/conversations)
* [Sync documentation](/docs/sync)
* [Access Tokens](/docs/iam/access-tokens)