Duplicate content types in site collections post migrating to SPO

Question

Duplicate content types in site collections post migrating to SPO

Raman Brar 0

We are migrating sites from SharePoint 2019 to SharePoint Online. We have content types being heavily used. Process that I followed for initial test migration is below:

Migrate few Content types(content types related to test site) in Content type hub from SharePoint 2019 to SharePoint Online. Publish all of them except one to test.
Migrate Site Collection structure and content. This migrated lists/libraries along with the content to SPO.

Post this what happened is I see duplicate content types in site collection content types as below:

SharePoint Online Site Collection Content Types:

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College Document content type was published after content type hub migration and before site collection migration. College Document set was published after site collection migration. Both of them behave in the same way, I see duplicates of both content types in site collection. Is this intended behavior?

sharing screenshots from different areas of SharePoint 2019 and SharePoint Online.

SharePoint Online Content type Gallery:

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SharePoint 2019 Content type Hub:

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SharePoint 2019 site collection content type:

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Should we expect duplicity of content types? Is this expected or did we follow wrong approach? what do we need to do differently before/after migration?

In the libraries where we are using these content types, I do not see any duplicates. Is there any preferred approach for Content types migration?

Thank You!

Yanli Jiang - MSFT 31,606 Reputation points Microsoft External Staff

2023-06-15T03:03:55.3933333+00:00

Hi, we are currently doing some research on this issue, will let you know as soon as possible.

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Yanli Jiang - MSFT 31,606 Reputation points Microsoft External Staff

2023-06-15T03:03:55.3933333+00:00

Hi, we are currently doing some research on this issue, will let you know as soon as possible.

Answer 1

Yanli Jiang - MSFT 31,606 Microsoft External Staff

Hi @Raman Brar ,

I don't know your migration method, so I can't tell whether it is your migration method that is wrong. But according to the screenshots you provided, it has migrated the content types of all levels.

The content types in content Type Hub can be used in multiple site collections.

The content types in a site collection are only available in this site collection.

So when you migrate, you will migrate all over. If the content type at the site collection level is repeated. You can choose to migrate only the content type in the content type hub when migrating.

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Raman Brar 0 Reputation points

2023-06-15T15:56:47.1566667+00:00
Thank you for your response, Yanli.

I am using sharegate for migration and had shared the process followed above which is the recommended process for sharepoint migration:

Migrate Content types(content types related to test site) in Content type hub from SharePoint 2019 to SharePoint Online content type hub.

Migrate Site Collection structure and content. This migrated lists/libraries along with the content to SPO.

When we follow second step for migrating list and libraries structure, list columns and content types are automatically migrated. Logically it should not migrate content types again as they have been migrated to content type hub and published from their to all site collection irrespective of if the site is already existing or being newly created/migrated. That was my understanding if content types are published from content type hub and the site being migrated has same content types being referenced, it will skip the site collection level content types, but it did not do that.

Do you recommend any different approach? Please let me know what approach you recommend for migration. I can follow that to see if it helps. Thank you!
Yanli Jiang - MSFT 31,606 Reputation points Microsoft External Staff

2023-06-16T06:13:55.41+00:00

Hi @Raman Brar ,

Unfortunately, there is currently no ootb way to migrate the content type from SharePoint server to SharePoint online. And the sharegate you use is a third-party software, so I can't give you more advice. You can go to https://feedback.sharegate.com/ to start a discussion, maybe you will get different feedback. Hope your confusion can be answered as soon as possible.

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.
Raman Brar 0 Reputation points

2023-06-20T17:36:57.0766667+00:00

Thank you Yanli. I am reaching out to sharegate team to help with this.
Yanli Jiang - MSFT 31,606 Reputation points Microsoft External Staff

2023-06-21T02:06:19.07+00:00

Hi @Raman Brar ,

Ok, hope you have a nice day!

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Duplicate content types in site collections post migrating to SPO

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