Direct messaging instance generation

A system comprising:

• one or more processors;
• and
• computer readable media storing instructions that, when executed, cause the system to perform operations comprising:
• receiving, from a first computing device associated with a first user, a request for an access code comprising a code associated with the first user, wherein the access code enables direct messaging communications between the first user and at least one other user via a group-based communication platform without receiving an approval from an administrator of a group-based communication platform account associated with the first user;
• sending the access code to the first computing device based at least in part on the request;
• receiving, from a second computing device associated with a second user, a request to enable direct messaging communications based on the access code, the second user being associated with a second organization that is different from a first organization associated with the first user;
• and
• based at least in part on the request from the second computing device and the access code, generating a direct messaging instance between the first user and the second user, wherein the direct messaging instance enables messages to be transmitted between the first computing device and the second computing device via the group-based communication platform.

One or more non-transitory computer readable media storing computer-executable instructions that, when executed by one or more processors of a computing device, cause the computing device to perform operations comprising:

• receiving, from a first computing device associated with a first user, an instruction to generate an invitation to communicate via a direct messaging instance managed by a group-based communication platform, wherein the invitation comprises an access code associated with enabling direct messaging communications with the first user without receiving an approval from an administrator associated with the group-based communication platform, the access code comprising a code associated with the first user and the direct messaging instance;
• generating the invitation based at least in part on the instruction, wherein the invitation comprises the access code;
• sending the invitation to at least one of the first computing device or a second computing device associated with a second user, wherein the second user is associated with a second organization that is different from a first organization associated with the first user;
• receiving, from the second computing device, a request to enable direct messaging communications based on the access code;
• based at least in part on the received request from the second computing device and the access code, generating the direct messaging instance between the first user and the second user, wherein the direct messaging instance enables messages to be transmitted between the first computing device and the second computing device via the group-based communication platform;
• and
• sending an interface including the direct messaging instance to the first computing device and the second computing device.