Jan 03 2022 03:10 PM
Jan 03 2022 03:10 PM
I am signed up for the Office Insider Current Channel (Preview) and currently have version 2111 build 16.0.14701.20240 installed.
As soon as the LAMBDA function was released for Office Insiders, I created several Workbooks using LAMBDA functions in them. They all worked like a charm. However, after a few days of not using those Workbooks, I opened one of them and found a #NAME? error (unsupported function) in every single cell where the LAMBDA function was being used.
When I opened Name Manager, I found something like this (it's from one of the function's online examples):
=_xlfn.LAMBDA(_xlpm.a,_xlpm.b,SQRT((_xlpm.a^2 + _xlpm.b^2))).
The other Workbooks are showing the same issue. I closed the Workbooks without saving.
Was the LAMBDA function deprecated? I checked my account and I am still on the Current Channel (Preview) with no pending updates.
Jan 04 2022 02:51 AM
Jan 04 2022 03:08 AM
Jan 04 2022 04:46 AM
I have both Beta and Current (Preview). Don't know why, but now on the latest I have practically the same functionality as on Beta, in particular
- LAMBDA() itself
- lambdas helper functions as MAP(), REDUCE(), etc
- PowerPlatform.DataFlows() in PQ
Jan 05 2022 12:49 AM
@Carlos Spörk New features of Excel are "flighted", which means only part of all users in a certain channel get them. It sounds as if something went wrong during an update of Office and you lost access to this feature. You can try fully removing Office and re-installing it, hoping you get the feature back. But it is a lottery unfortunately.
Jan 05 2022 08:43 AM
Jan 05 2022 09:09 AM - edited Jan 05 2022 09:11 AM
Well, that behavior of functions availability on a random criteria is definitely rude. We're after all supposed to test and provide feedback on preview or beta features. And now I find out that some of the workbooks I created are probably not going to be of any use whatsoever until the LAMBDA function is released to the general public?
Btw, completely uninstalling and reinstalling Microsoft 365 only to see if I'm lucky to win the lottery would be a waste of time.
Jan 06 2022 05:29 AM
Jan 06 2022 07:02 AM
@Jan Karel Pieterse Yesterday I uninstalled and reinstalled Office (after rebooting). After reinstalling, I made sure I was still subscribed to the Office Insider's Current Channel (Preview), and I already had an update available for the Current Channel. Still, the LAMBDA function is not available. I will wait for the next update. Based on what you've heard, I might get the function back with that update. Thank you so much for your help!
Jan 06 2022 09:27 AM
Jan 07 2022 02:13 AM
@Carlos Spörk I got official response about this, which comes down to:
we’ve sometimes seen people lose flighted features when they should still have those flights, some reasons are,
I know that doesn't solve your issue though.
Jan 07 2022 03:07 AM
@Jan Karel Pieterse Yes, I have another Microsoft 365 account for Visio on my laptop (a work/school account), but I signed out of that account and uninstalled Visio before reinstalling Microsoft 365 Home. There are two other Windows accounts on my laptop, but I'm not sharing my Microsoft 365 Home subscription with them, and I know for a fact that they've never used Office on this laptop. Anyway, when I open the account settings in Excel, I am the only one signed in, and the "belongs to" section matches my MS 365 Home subscription's email. For the time being, I will wait to see what happens when I get a new update for the Current Channel and will post an update here.
Jan 27 2022 05:07 AM
@Jan Karel Pieterse Well, after waiting for almost 3 weeks I've got the latest update for the Current Channel (Preview) and lo and behold, the LAMBDA function is back, and all of my workbooks are working again. Before that, I had already followed your suggestion to sign out of my other 365 accounts.
Thank you so much for your help!
Feb 03 2022 03:18 AM
Just to say this is (probably) what happened to me; my son took me through a move from gmail to Outlook, which involved setting up a different (personalized) email address, to which I had to transfer my Office365 subscription. I then found - quite by chance - that the lambda functionality had disappeared.
* subscribed (with the new email account) to the office insider programme
* did an online repair of office
... but have not yet got lambdas working
I am hoping that they "come back" with a future update.
Curiously (to my simple mind) MS first line tech support gave up and wouldn't refer me further to technicians, instead giving me a number of community links (which led to this). My hopes rather fell when the person taking over my machine seemed really confused about my customized ribbon :)
Feb 03 2022 04:26 AM
I am almost certain that, at least in my case, the multiple Office 365 accounts were the root cause for the missing LAMBDA function.
As for your comment regarding the tech rep's confusion with your customized ribbon: Before starting a support chat or call, I always make sure to take a screenshot and then reset every custom layout on my Office apps. It usually saves us both a lot of time... ;)