Forum Discussion
Victoria Symons
Oct 19, 2023Brass Contributor
Cannot change the site logo thumbnail
I have several new sites where I cannot change the site logo thumbnail from the default image. I can change the 'site logo' but not the 'site logo thumbnail'.
I have tried in different browsers, in private browsing, non private browsing but no matter what - when I go back in it has switched back to the default image. This seems to be a problem with new sites, older sites seem to be ok.
This is quite annoying as the thumbnail displays in a number of places throughout SP....on the SP landing page and throughout the site/library settings.
Any help would be gratefully recieved. Thanks.
Lucas_v
Hi Lucas.
Thanks for your info. This is so annoying and somewhat intermittent. It's happening again on new sites today.
I have managed to get the logo thumbnail to stick today by going to Site assets, deleting the existing "__siteIcon__.jpg " and then quickly uploading a new logo with the same file name and extension in Change the look > Header > Change site logo thumbnail.
Bit of a phaff but it's sticking so far! Pngs are working for the site logo.
Best wishes, Vicki
- sopocoderCopper Contributor
I struggled with this for a while. Changing the site logo thumbnail for communication sites worked fine, but I could not change it for team sites. I tried:
- different image file types
- different image sizes
- replacing the image files in Site Assets
- setting the -HiddenFromExchangeClientsEnabled to true/false
but none of these worked. I made the observation, however that for team sites with Teams activated, if I made myself an owner and updated the group logo in Teams it would update in the associated SharePoint team site as well. I assumed it had something to do with the Teams interface that made the difference, and so I was puzzled on how to do this for team sites that did not have Teams activated. However, the key was that I was making myself a group owner. The site logo thumbnail appears to be associated with the group in a way that the site logo is not. Thus, while you can update the site logo of a team site as site admin, you must be a group owner in order to update the site logo thumbnail. As soon as I made myself a group owner, I was able to update the site logo thumbnail from the SharePoint settings.
- Lucas_vCopper Contributor
Hi, I have been fiddling around with this issue for some time now and I don't seem to have a fix that permanently works.
What I do have is some fixes you can try, but might not always work, or only work partly. They are combined into this instruction- Get the picture you want to use for a thumbnail, and name it "__siteIcon__" (double underscores in front and at the end). Just that name and nothing behind or in front of it.
- Make the picture a JPG format, this seems to be working the best for me. Also try to make it small in size, I have mine at 256x256.
- On your SharePoint Homepage go to Settings > Site Contents > Site Assets. There you can delete all the old images you used for the thumbnail (I believe all files with __siteIcon__ in front of it).
- Drag and drop/upload the local JPG file you just created to this library. Quickly after select the file, and check it out (for me the three dots in upper right corner)
- After this refresh the browsers cashe (Crtl + F5). It might take some time for the thumbnail to update across all sites.
I hope this helps you!
Lucas
- Victoria SymonsBrass Contributor
Lucas_v
Hi Lucas.
Thanks for your info. This is so annoying and somewhat intermittent. It's happening again on new sites today.
I have managed to get the logo thumbnail to stick today by going to Site assets, deleting the existing "__siteIcon__.jpg " and then quickly uploading a new logo with the same file name and extension in Change the look > Header > Change site logo thumbnail.
Bit of a phaff but it's sticking so far! Pngs are working for the site logo.
Best wishes, Vicki - Tim_Gosling_ADLCopper ContributorHi Lucas and Victoria,
I have indeed found some success with using JPG images instead of PNG, which is a shame as I was hoping to include a transparent background around our Logo, but will have to settle for a plain white background in a JPG.
I have however discovered that there are discrepancies with how this works between site types. The workaround seems to work for Team Sites connected to a 365 group, but not for team sites without a 365 group, and communication sites seem to have no problem at all.
I am still not sure of the reason for the discrepancy, but it is quite frustrating.
- Tim_Gosling_ADLCopper ContributorI have also been experiencing the same issue with Site logo thumbnails. I have been able to successfully change the site icon from the Settings>Change the look>Header>Display menu, but changes to the site logo thumbnail do not stay after saving.
- Victoria SymonsBrass ContributorI found using jpgs rather than my usual pngs worked
- stoilov2370Copper Contributorthis worked for me also. thanks