> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers.md).

# Implement Click to Pay (Issuers)

- [Enroll cards in Click to Pay](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/enroll-cards-in-click-to-pay.md)
- [Enroll cards by D1 API](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/enroll-cards-in-click-to-pay/enroll-cards-by-d1-api.md)
- [Enroll cards by D1 SDK](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/enroll-cards-in-click-to-pay/enroll-cards-by-d1-sdk.md)
- [Enroll cards by auto enrollment](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/enroll-cards-in-click-to-pay/enroll-cards-by-auto-enrollment.md)
- [Retrieve Click to Pay profiles](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/retrieve-click-to-pay-profiles.md)
- [Retrieve profiles by D1 SDK](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/retrieve-click-to-pay-profiles/retrieve-profiles-by-d1-sdk.md)
- [Update Click to Pay profiles](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/update-click-to-pay-profiles.md)
- [Update profiles by D1 SDK](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/update-click-to-pay-profiles/update-profiles-by-d1-sdk.md)
- [Opt out cards from Click to Pay](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/opt-out-cards-from-click-to-pay.md)
- [Opt out with the D1 API](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/opt-out-cards-from-click-to-pay/opt-out-by-d1-api.md)
- [Opt out by D1 SDK](https://docs.payments.thalescloud.io/click-to-pay/implement-click-to-pay-issuers/opt-out-cards-from-click-to-pay/opt-out-by-d1-sdk.md)


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