A direct line between your company and the people connected to it: employees, customers, tenants and clients. With attachments, read and unread marks, a push message on the phone and rights that decide exactly who may write to whom.
Most company communication with individual people still happens by private channels. A tenant sends a photo of a leaking pipe over a messaging app to the caretaker’s private number. A client mails a question to the one employee they happen to know. An employee texts a manager about a shift change. All of it works, and all of it disappears the moment that person is on holiday or leaves.
Company Chat gives the same conversation a place inside the company. The thread belongs to the relationship, not to a phone. Colleagues with the right permission can see it, take it over and answer it, and nothing is lost because one person was unreachable.
It is deliberately simple. One conversation per person, attachments when a document or a photo says more than a sentence, a clear mark for what has been read, and a push message so that an answer does not wait until somebody next opens a mailbox.
All in IDup — one login, no silos.
Everything ever said with that employee, customer, tenant or client sits in one thread that stays with the relationship. A colleague who takes over reads the history instead of asking for it, and nothing depends on who happens to have the old messages on their phone.
Send a document, a photo of a defect, a scan or a form directly in the conversation. The file stays attached to the thread, so a year later the picture and the sentence that described it are still together.
You can see what has been delivered and what has been read. That removes the most common source of friction in company communication, which is not disagreement but uncertainty about whether a message ever arrived.
Who may write to a person and who may only read is a setting, not a convention. That matters as soon as more than two people work with the same customers, and it is what makes the chat usable for sensitive relationships such as tenants, patients or clients.

Ask any company what happens when a long-serving colleague leaves and the honest answer involves a phone. Years of arrangements, promises, exceptions and half-agreements live in a private message history that nobody else has ever seen.
It is not carelessness. It is simply that a private channel was the fastest way to answer at the time, and there was never a moment where moving the conversation somewhere else was the obvious thing to do.
Putting the thread inside the company from the start avoids the problem entirely, because there is nothing to migrate later. The person on the other side notices no difference, and the company keeps the history it will eventually need.
The person is connected to your company through an invitation, so the conversation has a clear owner on both sides.
You write from the company side; a push message reaches the phone of the person immediately.
The answer lands back in the same thread, visible to every colleague who is allowed to see it.

When a company answers on five channels, every one of them is checked a little less often, and the slowest channel decides how responsive the company looks.
A single place for direct messages with connected people has the opposite effect. One inbox is checked properly, and a push message means an urgent question is seen in minutes rather than at the end of the day.
It also makes the rest of IDup more useful, because a message can point at something concrete: this invoice, this appointment, this document. The conversation and the thing it is about stop living in separate systems.
One login, ein Preis – keine versteckten Zusatzkosten.
Exactly the people you allow. Writing and reading are separate rights, so a colleague can follow a conversation without being able to answer it.
No. Connected people use their free personal account, which is enough to read and answer messages on the web and in the app.
Yes. Attachments stay in the conversation, which means the document and the sentence explaining it are still together months later.
Yes, if they allow notifications. A push message reaches the phone and a tap opens the conversation directly.
No. It is a direct line between the company and one connected person. That is deliberate, because it keeps every conversation attached to a clear relationship.
They stay with the relationship, not with an employee. A colleague who takes over sees the history and can continue where the last person stopped.