[SharePoint Online] Modern page creation failure with custom template and content type

Question

[SharePoint Online] Modern page creation failure with custom template and content type

Bertrand 31

Hello,

I'm working with SharePoint Online to create an Intranet with multiple site collections attached to a site hub.
I created a the same page template on every of these sites and set a custom content type to it allowing the users providing custom metadata on these pages (such as the name of the department).

It worked properly until the last friday 12/11/2020 because some users created new pages based on this page template. But, since this Monday (12/15/2020), it is no longer working and all the users are encountering the following error message while saving the page as draft or publishing it:

REST error Error with code -2147024809, System.ArgumentException due to Inner-Message: Invalid data has been used to update the list item. The field you are trying to update may be read only. Exception-Message: [HTTP]:400 - [CorrelationId]:49ca979f-b08b-2000-98d1-94f092ed92c3 [Version]:16.0.0.20802 at Error: Inner-Message: Invalid data has been used to update the list item. The field you are trying to update may be read only. Exception-Message: [HTTP]:400 - [CorrelationId]:49ca979f-b08b-2000-98d1-94f092ed92c3 [Version]:16.0.0.20802 at new t (https://spoprod-a.akamaihd.net/files/sp-client/sp-pages-assembly_en-us_35d65bcb05792076e5f4902acd4f9a88.js:1:328581) at Function.e._getOdataRestApiError (https://spoprod-a.akamaihd.net/files/sp-client/chunk.sp-pages-statemanager_en-us_e6cfd72ee4c780ffb2c9.js:1:21063) at https://spoprod-a.akamaihd.net/files/sp-client/chunk.sp-pages-statemanager_en-us_e6cfd72ee4c780ffb2c9.js:1:23770}

While editing the page, if the users click on the "Page details" button, the following error is displayed:

When clicking on Page details to fill custom properties provided by the custom content type :

Can't get page details. There may be a connection issue or other issue. Refresh the page and try again.

Below, you can find the screenshots of the errors and the browser console with all the errors displayed.

All the errors shown in the browser console and in popup messages seem to be SharePoint internal errors.

These errors occur on every site collection of the intranet.
I tested several things and I found out that if I create a new content type and set it to the custom page template, it works properly. But the thing is nobody did any action on the sites during the weekend and everything is broken now. I have around 25 site collections with several custom content types on each site and I don't want to create them again.
Does any updates has been done by Microsoft on the SharePoint tenants this weekend?

Thank you very much. !

Accepted answer

2 additional answers

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Answer 1

Marco Santos 86

Ok I've found the solution (well, culprit and workaround to be more precise) for this in the PnP community:

https://github.com/pnp/pnpframework/issues/53

You can read the whole thread to get the full picture but it's the user b00johst that provides the solution for both scenarios: making a correct new deployment (remove OOB fieldrefs from site CTs) and fixing an already affected site (fix SelectFilename and LinkTitle in site CT's). I've tested this myself and confirmed it works.

Bertrand Vergnault 1 Reputation point

2021-01-07T10:47:20.883+00:00

Hello @Marco Santos !

Thank you so much for this information!
I also confirm that the PowerShell script provided by b00johst on the PnP community is working and fixed the issue.

The root cause is also very interesting for future use of PnP provisioning commands.

Answer 2

Echo Du_MSFT 17,316

Hello @Bertrand ,

You could use the Page Diagnostics for SharePoint tool to analyze page calls.

The Page Diagnostics for SharePoint tool is a browser extension for the new Microsoft Edge (https://www.microsoft.com/edge) and Chrome browsers that analyzes both SharePoint Online modern portal and classic publishing site pages.

More information, please refer to the following articles:

Thanks,
Echo Du

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Bertrand 31 Reputation points

2020-12-17T08:38:07.173+00:00

Hello,

Thank you for your answer but the Page Diagnostics for SharePoint is not useful in that case because it doesn't work during page creation process.
Echo Du_MSFT 17,316 Reputation points

2020-12-17T09:32:58.113+00:00

Hi @Bertrand ,

I would suggest you open a service request with Microsoft 365 team via Microsoft 365 admin center >>Support>> New service request to get dedicated help and let the team look into it.

Have a nice day!

Thanks,
Echo Du
Bertrand 31 Reputation points

2020-12-18T11:13:43.363+00:00

Hello, thank you, I will open the service request today. I'll let you know about the issue and resolution found ;)

Have a nice day.
Stefan 1 Reputation point

2020-12-18T12:42:19.45+00:00

That is great. I have the same error and I am quite helpless at the moment. Can you post any updates here, please?

This is indeed quite an annoying error.
Bertrand 31 Reputation points

2020-12-18T13:32:43.343+00:00

Hello,

I'm sad you also encounter the problem, but I'm also relieved that I'm not alone with this problem!!
I created the support ticket on my O365 tenant...I'll let you know what is the solution (if it exists!)
Echo Du_MSFT 17,316 Reputation points

2020-12-21T01:26:56.563+00:00

Hi @Bertrand ,

Thank you for your reply.

Looking forward to the news that your problem is solved perfectly.

I wish you all the best!
Marco Santos 86 Reputation points

2020-12-23T14:55:53.437+00:00

I have the same error, which also appeared everywhere suddenly. In my tenant we use PnP provisioning to replicate site configurations so I though that the problem was somehow introduced by PnP not handling correctly changes in the reference template site, done by business editors. From my understanding, in your case all those sites where manually configured through user interface. Do you confirm?

I've spent already two full days after this. I've tried disabling the following in my custom CTs so far: mandatory fields, default values, audience, hidden... All without success.

Needless to say that I'm also interested in the feedback that MSFT provides you.
Bertrand 31 Reputation points

2020-12-23T19:48:37.957+00:00

Hello maps05,

I also tried all these actions without any result. The only thing working is to recreate the content type from the UI. I also created all the site collections through PnP provisioning as you did.
I'm on holiday now, but I'll compare (after the new year's eve) the configuration of the content types: the one that is broken and the new one that is working and created manually through the UI.
This would mean that the configuration previously done by PnP Provisioning is now incorrect since the weekend of 11 of December.
An interesting thing to check could be to create a new site based on the existing PnP provisioning and see if it is working properly. It would be also interesting to create a new PnP provisioning site configuration and check if something has changed inside the PnP provisioning XML file.

Thank you very much for you answer. I'll keep you informed ;)
Echo Du_MSFT 17,316 Reputation points

2020-12-29T01:20:40.937+00:00

Hi @Bertrand ,

I am very happy for your sharing and wish you a happy holiday.

Thanks,
Echo Du
Stefan 1 Reputation point

2021-01-08T14:46:26.067+00:00

@Bertrand Have you managed to get any updates on this?

Answer 3

Nico P 1

This can also happen even if you do not use a PnP Module if:

A lookup column pointing to a nonexistent list and after removing it would cause this. Once you find that missing lookup column will fix your issue.

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[SharePoint Online] Modern page creation failure with custom template and content type

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