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Moengage Web SDK does not use or track any 3rd-party cookies.
It only uses 1st-party Cookies and only in the following cases:
Cookie nameDescription
moe_uuidIt contains device ID. It is also used in case of AMP integrations.
The following cookies are used when Cross sub-domain tracking is enabled.
Cookie nameDescription
moe_u_dContains user details such as device id, isDeviceAdded etc.
moe_s_a_sStatus of the Web Push permission Soft Ask
moe_s_nContains the session and source details of the user
moe_o_s_tThe time when the notification opt-in is shown
moe_h_a_sStatus of the Web Push permission Hard Ask
moe_s_dContains Push Subscription related details
moe_d_dContains the device unique id of the user
moe_c_sIndicates whether cross-subdomain user sharing has been enabled or not for your account
moe_i_mContains the current and previous identities (if any) of the user
moe_disIndicates whether SDK has been disabled or not
moe_dt_dIndicates whether data tracking has been disabled or not

Disable all Cookies

If you want that Moengage SDK does not set or use any cookies, then you can do it by passing disableCookies while initialising the SDK as:
Moengage = moe({
  app_id: moeAppID,
  debug_logs: 0,
  disableCookies: true,
});
If you have enabled Cross Sub-domain user tracking, then that will not work on disabling cookies.