Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: A messaging system in one embodiment includes a messaging app and one or more extension apps configured to create content that is displayed in a view hosted by the messaging app. The messaging app can launch the one or more extension apps, and content can be communicated between each extension app and the messaging app through an interprocess communication.

Abstract: Aspects of subject technology provide systems and methods for generation and distribution of a stable identifier associated with multiple aliases of a user account. The stable identifier may be provided to various electronic devices by a server, responsive to requests associated with communications to those devices from one of the associated aliases. In this way, messaging applications can utilize the stable identifier to merge conversations from a single user having multiple aliases, and secure access to a secure device can be provided to an authorized user, even if the authorized user attempts access from an unauthorized account alias.

Abstract: A messaging system in one embodiment includes a messaging app and one or more extension apps configured to create content that is displayed in a view hosted by the messaging app. The messaging app can launch the one or more extension apps, and content can be communicated between each extension app and the messaging app through an interprocess communication.

Abstract: A messaging system in one embodiment includes a messaging app and one or more extension apps configured to create content that is displayed in a view hosted by the messaging app. The messaging app can launch the one or more extension apps, and content can be communicated between each extension app and the messaging app through an interprocess communication.

Abstract: Among other disclosed subject matter, a method includes providing a user interface allowing the insertion of elements into a document flow comprising static and dynamic elements, the user interface presenting a graphical depiction of the document that is dynamically altered by the insertion of the element, wherein the dynamically altered appearance of the document correctly reflects the position and type of the inserted element and rearranges all existing static and flow elements of the document around the inserted element.

Abstract: Among other disclosed subject matter, a method includes providing a user interface allowing the insertion of elements into a document flow comprising static and dynamic elements, the user interface presenting a graphical depiction of the document that is dynamically altered by the insertion of the element, wherein the dynamically altered appearance of the document correctly reflects the position and type of the inserted element and rearranges all existing static and flow elements of the document around the inserted element.