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Check the Microsoft ID on your laptop. Open an Office Application and click on File, Account and sign in to your account. <br />
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Then use the same ID on your phone. It is a different install on the phone so far as I lnow, but the laptop Office ID should work.
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Hi John,<br />
I am using the same ID on my phone as my laptop.
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@DColin &nbsp;- Thanks and I was happy to help.
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Hi Experts,<br />
<br />
I have just purchased a subscription to Office 365 Home. It installed on my laptop without any bother but I am having trouble getting it on my WinPhone 8.1. I click the Office tile select Office 365 and setup. It then asks me for email and password which I assume is my Microsoft passport details that I signed up to Office 365 with. I enter my details and hit the sign in button and it tells me 'Something's wrong. We encountered a problem and couldn't complete this task'. What should I do?
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Hi Experts,

I have just purchased a subscription to Office 365 Home. It installed on my laptop without any bother but I am having trouble getting it on my WinPhone 8.1. I click the Office tile select Office 365 and setup. It then asks me for email and password which I assume is my Microsoft passport details that I signed up to Office 365 with. I enter my details and hit the sign in button and it tells me 'Something's wrong. We encountered a problem and couldn't complete this task'. What should I do?

Check the Microsoft ID on your laptop. Open an Office Application and click on File, Account and sign in to your account. 

Then use the same ID on your phone. It is a different install on the phone so far as I lnow, but the laptop Office ID should work.

Hi John,
I am using the same ID on my phone as my laptop.

@DColin  - Thanks and I was happy to help.

Install Office 365 on Windows 8.1 phone

Hi Experts,

I have just purchased a subscription to Office 365 Home. It installed on my laptop without any bother but I am having trouble getting it on my WinPhone 8.1. I click the Office tile select Office 365 and setup. It then asks me for email and password which I assume is my Microsoft passport details that I signed up to Office 365 with. I enter my details and hit the sign in button and it tells me &#39;Something&#39;s wrong. We encountered a problem and couldn&#39;t complete this task&#39;. What should I do?

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Windows Phone (WP) is a family of mobile operating systems developed for smartphones as the replacement successor to Windows Mobile and Zune.  Windows Phone features a new user interface derived from Metro design language. Windows 10 Mobile succeeded Windows Phone 8.1 and emphasizes a larger amount of integration and unification with its PC counterpart—including a new, unified application ecosystem, along with an expansion of its scope to include small-screened tablets.