Secure messaging system with constrained user actions, including override, for ensured compliant transmission of sensitive information

A system comprising one or more computer systems and non-transitory computer storage media storing instructions that when executed by the one or more computer systems, cause the one or more computer systems to perform operations comprising:

• receiving, from a customer user device via a network, a request to access a digital messaging tool;
• and
• causing rendering, via the customer user device, of an interactive user interface associated with the digital messaging tool, wherein the interactive user interface:
• responds to selection of an end user configured to receive text messages, wherein the selection triggers access, by the system, to one or more databases storing a consent state for the end user, the consent state indicating that affirmative consent has not been received from a phone number associated with the end user;
• based on the consent state being negative, presents a selectable object to override the consent state, wherein overriding indicates that the end user externally provided affirmative consent, wherein the interactive user interface disallows arbitrary messaging of the end user;
• receives user input via the selectable object to override the consent state, wherein the consent state is updated to be positive;
• and
• updates to include an input portion in which arbitrary information may be input, wherein input of arbitrary information is transmitted to the phone number as a text message.

A system comprising one or more computer systems and non-transitory computer storage media storing instructions that when executed by the one or more computer systems, cause the one or more computer systems to perform operations comprising:

• causing presentation of an interactive user interface to a customer user, the interactive user interface enabling messaging with one or more end users, each end user being associated with a respective phone number;
• receiving, via the interactive user interface, selection of a particular end user and updating the interactive user interface to include a selectable option, wherein user input provided to the selectable option triggers transmission of a standardized consent message to a particular phone number associated with the particular end user, the standardized consent message requesting that the particular end user provide affirmative consent to receiving sensitive information;
• receiving, via the interactive user interface, user input to indicate receipt of externally provided affirmative consent;
• and
• updating the interactive user interface, wherein the updated interactive user interface includes an input portion configured to receive arbitrary information for transmission to the particular phone number.