> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

# [Api Reference](https://dev.wix.com/docs/api/get-menu-content?url=https%3A%2F%2Fdev.wix.com%2Fdocs%2Fapi-reference&format=markdown.md)

## [CRM](https://dev.wix.com/docs/api-reference/crm.md)


### [Communication](https://dev.wix.com/docs/api-reference/crm/communication.md)


#### [Email Subscriptions](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions.md)


- [Emailsubscription Object](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/emailsubscription-object.md)

- [Bulk Upsert Email Subscription](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/bulk-upsert-email-subscription.md)

- [Generate Unsubscribe Link](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/generate-unsubscribe-link.md)

- [Query Email Subscriptions](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/query-email-subscriptions.md)

- [Upsert Email Subscription](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/upsert-email-subscription.md)

- [Emailsubscription Email Subscription Changed](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/emailsubscription-email-subscription-changed.md)

- [Introduction](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/introduction.md)

- [Example Flows](https://dev.wix.com/docs/api-reference/crm/communication/email-subscriptions/example-flows.md)