> ## Documentation Index
> Fetch the complete documentation index at: https://voucherify-pw-further-tests.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Loyalty Campaign

> Updates a loyalty program. 

Fields other than those specified in the allowed request body payload won't be modified (even if provided they are silently skipped). Any parameters not provided will be left unchanged. 

This method will update the <!-- [loyalty cards](OpenAPI.json/components/schemas/8_obj_loyalty_card_object) -->[loyalty cards](ref:get-member) which have not been published or redeemed yet.