@Keith-EHA .....How you are getting the manager's email & display name? Also, what kind of variables you're using to store respective values?

As this is my first attempt at Nintex Workflows I was initially expecting (and hoping) a Workflow would simply pull through the data using the default Workflow Context options. This works for 'Initator' etc, but not for manager. 

Thinking I needed a Var, I updated the Workflow to include vars to do the Manager lookups. I then used a Send an Email and called the vars using:

Insert Reference > Workflow Variables > 'userManagerName'

Insert Reference > Workflow Variables > 'userManagerEmail'

It's intersting that the Workflow does not fail, but does not seem to run either. A duplicated workflow removing the Manager references returns emails everytime. 

Is there something other than activating User Profile Service that needs to be done from Nintex > Sharepoint > AD that successfully looks up the Manager details?

@Keith-EHA ......try below steps:

1. Using Initiator, get the manager and save it in single line of text
2. Using single line of text from step # 1, get the display name
3. You can use single line of text from step # 2 in the email's To field

I don't fully understand the use of Initiator to call Manager details. Here are screenshots of what I have just now to test the use of User Profile Serivce to get manager name and email...

I suspect there maybe an O365 or Sharepoint issue - I am not an admin within my organisation, so have to request permission changes / access grants etc. 

@Keith-EHA ...If you're issue is with O365 then it's better if you post your query in that forum....this is mainly for on-prem.

Ah I see,

I didn't realise this was SP-on prem forum. We have are fully SP-online/O365.

Thanks for your help tho ?

Originally this was posted on the nintex/sharepoint forum, I have been advised to repost here...

This relates to O365 & Sharepoint Online:

Hopefully a simple issue - I want to use the Workflow Context Reference: {Workflow Context:Manager email address} to populate an email address.

But the email does not send.

The workflow does not fail and User profile service is on. If I remove any reference to 'manager' the email will send (to Initiator for instance). If I include 'manager' in the message body, the email does not send.

Is there something obvious I am missing?

Did you follow these steps using an account with tenant administrator privileges?

Originally, with my SharePoint Admin privileges, I did the same steps but there were no warning/error that it did not succeed.

Ah ok, thanks @v-tmasenko 

I am not an Tenant Admin. My IT dept ran the 'Trust It' option for me. Perhaps this is the issue. 

I will request that I am made a Tenant Admin and test the simple workflows.