First Steps
You can add someone to a project with their email address, even if they do not have a KOSMA account yet.
You can give someone access to a project with their email address, even if they do not have a KOSMA account yet. Only the owner of the project can add a guest.
A guest gets access to a single project. With a team invitation and its code, a person gets a licence seat. See [redeem a team invitation](/kb/article/redeem-a-team-invitation).
In the **Project Manager**, click  **Open Settings** at the end of the project's row. KOSMA opens the **Project Settings** window. If the button is missing or greyed out, see [open project settings](/kb/article/open-project-settings).
Under **Guest Members**, click **Guest**. KOSMA adds an empty row. Its **Access Ends** already shows 31 December of the current year.
A new guest sees only the **Budgeting** section. To let the guest also see **Financing**, **Cash Flow** or **Cost Control**, tick that section's box in the guest's row. **Budgeting** is always visible. You cannot clear its box.
Type the person's first and last name into **Name**. You can also leave the field empty. Type the person's email address into **Email**.
To end the guest's access on a different date, change **Access Ends** in the same row. See [set when a guest's access ends](/kb/article/set-when-a-guests-access-ends).
Click **Ok**. KOSMA sends an email to every guest in the list, including guests who already had access. If no KOSMA account exists for an address yet, the email is an invitation. KOSMA creates the account when the guest accepts the invitation.
To make the project visible to the guest, open the project and share a dataset, for example a budget, with them in the project window. See [how sharing works](/kb/article/how-sharing-works). If a guest has never signed in to KOSMA, you can share a dataset with them only after their first sign-in. The guest needs no paid licence: on Free, they can read everything you share with them in the sections ticked in their row.
A row has no valid email address. Its **Email** field has a red frame. Enter a valid email address in that row.
**Guest** and **Ok** also stay greyed out while KOSMA is offline or in [local-only mode](/kb/article/work-offline-or-in-local-only-mode). When you point at **Ok**, KOSMA shows:
You cannot edit project attributes offline
In local-only mode, pointing at **Ok** shows:
Unavailable until you log in again
When you click **Cancel**, KOSMA discards every change you made in the window, including a new project name.
If KOSMA is offline, wait until the connection is back. In local-only mode, click **Cancel**, then click  **Log In Again** in the left panel and sign in.
To leave without adding the guest, click **Cancel**.
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