# Charges without a charge code - (ExistingChargeKey) **URL:** \ **Category:** API Question\ **Created:** [November 16, 2021, 10:33am UTC](http://forum.companieshouse.gov.uk/t/charges-without-a-charge-code-existingchargekey/4553 "2021-11-16T10:33:33Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![johnny](http://forum.companieshouse.gov.uk/letter_avatar_proxy/v4/letter/j/ecb155/32.png) [@johnny](http://forum.companieshouse.gov.uk/u/johnny)\ **Post date:** [November 16, 2021, 10:33am UTC](http://forum.companieshouse.gov.uk/t/charges-without-a-charge-code-existingchargekey/4553/1 "2021-11-16T10:33:33Z")
Hi, The documentation states that a charge before 06/04/2013 won’t have a charge code so the ExistingChargeKey is needed to perform updates on the XML filing API. Is there any field on the public API that displays the ExistingChargeKey and if so what field is it below? [https://developer-specs.company-information.service.gov.uk/companies-house-public-data-api/resources/chargelist?v=latest](https://developer-specs.company-information.service.gov.uk/companies-house-public-data-api/resources/chargelist?v=latest) Any help is appreciated. ---
**Author:** ![MArkWilliams](http://forum.companieshouse.gov.uk/user_avatar/forum.companieshouse.gov.uk/markwilliams/32/194_2.png) [@MArkWilliams](http://forum.companieshouse.gov.uk/u/MArkWilliams)\ **Post date:** [November 24, 2021, 5:19pm UTC](http://forum.companieshouse.gov.uk/t/charges-without-a-charge-code-existingchargekey/4553/2 "2021-11-24T17:19:44Z")
I think you are referring to the charge number. In the spec it’s “charge\_number”: “integer”, In the example [https://api.company-information.service.gov.uk/company/00002065/charges/12NQBAazndrpEQeeVJFjZ7m4rT0](https://api.company-information.service.gov.uk/company/00002065/charges/12NQBAazndrpEQeeVJFjZ7m4rT0) it’s charge number 31, so that would be what you send in as the ExistingChargeKey Hope that helps