# Parameters These parameters consist of all required event data parameters and any additional data parameters the Conversions API needs to use for ads attribution and/or ads delivery optimization. **Warning:** [The Conversions API](https://developers.facebook.com/documentation/ads-commerce/conversions-api) now supports web, app, offline, and business messaging events. Website events shared using the Conversions API require the [`client_user_agent`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#client-user-agent), [`action_source`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#action-source), and [`event_source_url`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#event-source-url) parameters, while non-web events **require only** [`action_source`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#action-source). These parameters contribute to improving the quality of events used for ad delivery and may improve campaign performance. By using the Conversions API, you agree that the [`action_source`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#action-source) parameter is accurate to the best of your knowledge. ### [Main Body Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/main-body) * [`data`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/main-body#data) * [`test_event_code`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/main-body#test_event_code) ### [Customer Information Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters) * [`em`: Email](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#em) — Hashing required * [`ph`: Phone Number](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ph) — Hashing required * [`fn`: First Name](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#fn) — Hashing required * [`ln`: Last Name](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ln) — Hashing required * [`ge`: Gender](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ge) — Hashing required * [`db`: Date of Birth](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#db) — Hashing required * [`ct`: City](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ct) — Hashing required * [`st`: State](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#st) — Hashing required * [`zp`: Zip Code](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#zp) — Hashing required * [`country`: Country](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#country) — Hashing required * [`external_id`: External ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#external-id) — Hashing recommended * [`client_ip_address`: Client IP Address](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#client-ip-address) — Do not hash * [`client_user_agent`: Client User Agent](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#client-user-agent) — Do not hash * [`fbc`: Click ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#fbc) — Do not hash * [`fbp`: Browser ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#fbp) — Do not hash * [`subscription_id`: Subscription ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#subscription-id) — Do not hash * [`fb_login_id`: Facebook Login ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#fb_login_id) — Do not hash * [`lead_id`: Lead ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#lead_id) — Do not hash * [`anon_id`: Install ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#anon_id) — Do not hash (_**Note:** This parameter is for app events only_) * [`madid`: Mobile Advertiser ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#madid) — Do not hash (_**Note:** This parameter is for app events only_) * [`page_id`: Page ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#page_id) — Do not hash * [`page_scoped_user_id`: Page scoped user ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#page_scoped_user_id) — Do not hash * [`ctwa_clid`: Click to WhatsApp ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ctwa_clid) — Do not hash * [`ig_account_id`: IG account ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ig_account_id) — Do not hash * [`ig_sid`: Click to Instagram ID](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#ig_sid) — Do not hash ### [Server Event Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event) - [`event_name`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#event-name) - [`event_time`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#event-time) - [`user_data`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#user-data) - [`custom_data`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#custom-data) - [`event_source_url`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#event-source-url) - [`opt_out`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#opt-out) - [`event_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#event-id) - [`action_source`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#action-source) - [`data_processing_options`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#data-processing-options) - [`data_processing_options_country`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#data-processing-options-country) - [`data_processing_options_state`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#data-processing-options-state) - [`referrer_url`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#referrer-url) - [`customer_segmentation`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/server-event#customer-segmentation) ### [App Data Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data) - [`advertiser_tracking_enabled`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#advertiser-tracking-enabled) - [`application_tracking_enabled`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#application-tracking-enabled) - [`extinfo`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#extinfo) - [`campaign_ids`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#campaign-ids) - [`install_referrer`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#install-referrer) - [`installer_package`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#installer-package) - [`url_schemes`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#url-schemes) - [`windows_attribution_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#windows-attribution-id) - [`anon_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#anon_id) - [`madid`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/customer-information-parameters#madid) - [`vendor_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/app-data#vendor-id) _**Note**: See the [Conversions API for App Events](https://developers.facebook.com/documentation/ads-commerce/conversions-api/app-events) documentation for guidance on integrating app events._ ### [Standard Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/custom-data) See a list of all [standard parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/custom-data) users can send to Meta. ### [Original Event Data Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/original-event) - [`event_name`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/original-event#event-name-oed) - [`event_time`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/original-event#event-time-oed) - [`order_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/original-event#order-id-oed) - [`event_id`](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/original-event#event-id-oed) ### Conversions API for Lead Optimization If you integrate your CRM system with the Conversions API for lead events, refer to the [CRM Integration](https://developers.facebook.com/docs/marketing-api/conversions-api/guides/crm-integration) guide for the required fields. ### See Also - Overview: [`fbp` and `fbc` Parameters](https://developers.facebook.com/documentation/ads-commerce/conversions-api/parameters/fbp-and-fbc) ## Learn More - [Conversions API: Documentation](https://developers.facebook.com/documentation/ads-commerce/conversions-api) - [Using the Conversions API](https://developers.facebook.com/documentation/ads-commerce/conversions-api/using-the-api) - [Meta Privacy and Data Use Guide](https://www.facebook.com/business/m/privacy-and-data#Data-Use-&-Ads)