- For the best Mac client experiences and an always up-to-date infrastructure, we recommend all customers migrate to Office 365. Skype for Business Server 2015 customers should at a minimum download and install the Skype for Business Server 2015 Cumulative Update version 9319.272 or higher.
- IT Help Telecommunications How do I create a whiteboard in a Skype for Business meeting/webinar? Article: KB0010592 Published: Last modified: The whiteboard is a shared page for notes and drawings that participants in the meeting can contribute to.
- When sending an instant message using Skype for Business, you may see the error message 'This message wasn't sent to.' This can be caused for a variety of reasons. Scenario 1 The first user sends an instant message to a second user.
Unsurprisingly, you use federation to enable on-premise communication with Skype for Business Online. However, we will also have to make a change in Office 365 Admin for this too. Step 1: Set Federation for Skype for Business Online on Edge Server. All we need here are two cmdlets, entered in Skype for Business’ Management Shell.
Problem
Consider the following scenario.
- You're using Internet Explorer or Microsoft Edge to access Office Online Web App in the SharePoint Online environment.
- When you click the Skype button, you receive the following error message:'We couldn't sign you in. Please try to sign in again or refresh the page.'
Solution
For Skype for Business Online (formerly Lync Online) chat integration to work in Office Online Web App, remove the SharePoint Online URL from the Local intranet or Trusted sites settings under Internet Options.
Note
The Open with Explorer feature requires that your SharePoint Online URLs are included in your Trusted Sites list. If you want to use the Open with Explorer feature, you must add this URL back to your trusted sites.
More Information
This issue occurs because SharePoint Online URL domains (*.sharepoint.com) are typically added to the Trusted or Local intranet zones in Internet Explorer or Microsoft Edge. For more information, see the following Microsoft website:
However, authentication into Skype for Business Online is performed by using a different OrgID URL, which resembles the following:
When SharePoint Online creates an iframe to Skype for Business Online to enable integration, it must first authenticate. When it does this, it redirects to the OrgID URL in the iframe. Because an iframe inherits the zone of the parent, the page that's loaded in the iframe is also in the intranet zone. Internet Explorer stores cookies independently for each security zone. Therefore, the authentication cookie in the OrgID domain that's in the Internet zone can't be accessed by the iframe that's in the intranet zone. And because users can't enter their credentials to authenticate in a hidden iframe, authentication fails.
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-->Problem
Assume that in an Office 365 environment, you try to send or receive files or attachments in Lync through Skype for Business Online (formerly Lync Online). In this situation, you may experience the following issues:
- You can't send files to contacts.
- You can't receive files from contacts.
- You can't upload file attachments in Skype for Business Online meetings.
- When you send files to contacts, you receive an error message.
- You can't send pictures directly in an Instant Messaging (IM) conversation.
Solution
For Skype for Business Online users
If you receive an error message when you send or receive files, make sure that the file type being transferred isn't one of those that is listed in the 'More Information' section.
For Skype for Business Online administrators
Skype For Business We Couldn 27t Send This Message Machine
If a user doesn't see the option to transfer files, verify that file transfer capabilities are enabled for that user.
Firewalled networks must meet the network requirements for Skype for Business Online. For more information about Skype for Business Online network requirements, go to the following Microsoft Knowledge Base article:
2409256 You can't connect to Skype for Business Online, or certain features don't work, because an on-premises firewall blocks the connection
More Information
Generally, if the menu option to send a file isn't available, this means that the administrator has disabled file transfer capabilities for that user.
If your attempts to upload attachments to a conference or to send files to a contact generate an error message, this means either that the contact that you're sending the attachment to doesn't have permission to receive files or that the file type is blocked.
In Skype for Business Online, certain files types are blocked by the Intelligent Instant Message Filter (IIMF) application. IIMF helps protect Skype for Business Online users against the most common forms of viruses without degrading the user experience.
Skype For Business We Couldn 27t Send This Message Mac Os
Transferring files to Skype contacts isn't supported.
Skype For Business We Couldn 27t Send This Message Macbook
By default, Skype for Business Online is configured to prevent users from sending files through IM that have the following file name extensions:
ade, adp, app, asp, bas, bat, cer, chm, cmd, com, cpl, crt, csh, exe, fxp, grp, hlp, hta, inf, ins, isp, its, js, jse, ksh, lnk, mad, maf, mag, mam, maq, mar, mas, mat, mau, mav, maw, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ocx, ops, pcd, pif, pl, pnp, prf, prg, pst, reg, scf, scr, sct, shb, shs, tmp, url, vb, vbe, vbs, vsd, vsmacros, vss, vst, vsw, ws, wsc, wsf, wsh
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
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