# Automatically request CAC code

**URL:** <https://xmlforum.companieshouse.gov.uk/t/automatically-request-cac-code/349>\
**Category:** Uncategorized\
**Created:** [October 16, 2017, 10:07am UTC](https://xmlforum.companieshouse.gov.uk/t/automatically-request-cac-code/349 "2017-10-16T10:07:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![arthur](https://xmlforum.companieshouse.gov.uk/user_avatar/xmlforum.companieshouse.gov.uk/arthur/32/17_2.png) [@arthur](https://xmlforum.companieshouse.gov.uk/u/arthur)\
**Post date:** [October 16, 2017, 10:07am UTC](https://xmlforum.companieshouse.gov.uk/t/automatically-request-cac-code/349/1 "2017-10-16T10:07:59Z")

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Hi,  
Does anyone know if it’s possible to automatically request a company’s CAC code?  
We would like to make it each for companies to request a CAC code if they have forgotten theirs.

Does anyone know if this can be automatically requested through an API or even via an email?

Thanks

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**Author:** ![snicholas](https://xmlforum.companieshouse.gov.uk/user_avatar/xmlforum.companieshouse.gov.uk/snicholas/32/81_2.png) [@snicholas](https://xmlforum.companieshouse.gov.uk/u/snicholas)\
**Post date:** [October 16, 2017, 10:50am UTC](https://xmlforum.companieshouse.gov.uk/t/automatically-request-cac-code/349/2 "2017-10-16T10:50:44Z")

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Arthur,

You can advise a company authentication code via the incorporation schema.

However, Companies House do not have any system in place for companies to request their existing code.

They can request to change it for a new one via our web service however.

> **[Company authentication codes for online filing](https://www.gov.uk/guidance/company-authentication-codes-for-online-filing)**
>
> How to request and manage the authentication code you'll need to file information online at Companies House.

SDN