Workspace Owners and Admins can choose when to allow message editing: any time, never, or up to a certain timeframe. 

1. From your desktop, click   Admin in the sidebar.
2. Select Workspace settings from the menu.
3. Click the Permissions tab.
4. Next to Message Editing, click Expand.
5. Use the drop-down menu to choose when members can edit messages.
6. Click Save.

Org level

Org Owners and Org Admins can choose when to allow message editing: any time, never, or up to a certain timeframe. This policy will apply to every workspace in the org.

1. From your desktop, click your organization name in the sidebar.
   
2. Select Tools & settings from the menu, then click Organization settings.
3. Click  Settings in the left sidebar, then select Organization Policies.
4. Click the Permissions tab.
5. Next to Message Editing, click Add Policy or Edit.
6. Choose when members can edit messages, then click Save Policy.

Workspace level

If an org policy hasn't been set, Workspace Owners and Workspace Admins can choose when to allow message editing: any time, never, or up to a certain timeframe.

1. From your desktop, click your organization name in the sidebar.
   
2. Select Tools & settings from the menu, then click Workspace settings. If you manage more than one workspace, choose one from the drop-down menu.
3. Click the Permissions tab.
4. Next to Message Editing, click Expand.
5. Use the drop-down menu to choose when members can edit messages.
6. Click Save.

Workspace Owners can choose which role types can delete their messages. This permission will also affect who can unsend messages.

1. From your desktop, click   Admin in the sidebar.
2. Select Workspace settings from the menu.
3. Select Roles & Permissions in the left sidebar.
4. Click the   three dots icon next to Delete own messages, then select Edit permission.
5. Check or uncheck the boxes to choose who can delete messages, then select Save.

Org level

Org Owners can choose which role types can delete their own messages (this permission will also affect who can unsend messages). They can also decide whether to apply this policy to the entire organization or to allow individual workspaces to edit this permission.

1. From your desktop, click your organization name in the sidebar.
   
2. Select Tools & settings from the menu, then click Organization settings.
3. Click Roles & permissions in the left sidebar, then select Account types.
4. Click the   three dots icon next to Delete own messages, then select Edit permission.
5. Check or uncheck the boxes to decide who can delete their messages. You can also decide whether individual workspaces can edit this permission.
6. Select Save. 

Workspace level

If Org Owners allow, Workspace Owners can decide for their workspace which role types can delete their messages. This permission will also affect who can unsend messages.

1. From your desktop, click your organization name in the sidebar.
   
2. Select Tools & settings from the menu, then click Workspace settings. If you manage more than one workspace, choose one from the drop-down menu.
3. Select Roles & permissions in the left sidebar.
4. Click the   three dots icon next to Delete own messages, then select Edit permission.
5. Next to Message Editing & Deletion, click Expand.
6. Check or uncheck the boxes to choose who can delete messages, then select Save.