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Helper IV
Helper IV

Merge two SharePoint list to create a master collection

Hi All,


I have two SharePoint online lists as follows


List1- Name, Description, Color

List2- Capability, Domain, Name <----all these columns are look up columns link to different SPO lists


I want to merge List 1 and List 2 based on the Name columns.  List1 and LIst 2  relationship is 1:M.


I want a master collection as follows

Name, Description, Color,Capability, Domain


Can soem one please help me on this.



Super User III
Super User III

Can you please give some sample data from each table.  Then can you please show an example of the expected result table with a few rows?

@mdevaney please see below 

List1- Data comm, description 1, red 

          Collab365, descriptions 2, yellow 

List 2- Security, Cloud, Data comm

           Backup, Cloud, Data comm

           Design, UI, Collab365

Lookup list 1- (client name list)

                      Data comm



Look up list2- (capability)





Look up list 3-(domain)





Master collection- 

Data comm, description 1, red ,Security, Cloud

Data comm, description 1, red ,Backup, Cloud

Collab365,  descriptions 2, yellow,Design,UI


Both list contain more than 3000 items,  so need to avoid delegation issue. 



Here's a simple example you can study on 'how to join tables with a 1:M relationship' within a collection.  My example does not use lookup columns since they are not recommended for building Power Apps.  You may wish to convert you SharePoint lists to simple text or number columns instead of lookups as well.

Example - Join Tables With A 1:M Relationship


Please click "Accept as Solution" if my post answered your question so that others may find it more quickly. If you found this post helpful consider giving it a "Thumbs Up."

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