cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
Highlighted
Kudo Kingpin
Kudo Kingpin

Create many-to-many relationship using Flow

Hi,

 

I have 2 CDS entities related with many-to-many relationship. I want to relate 2 records from both entities together but unfortunately Microsoft Flow can't do it. Using PowerApps is not an option (need to do it in a loop). How can I achieve it?

 

Regards,

Mike

1 ACCEPTED SOLUTION

Accepted Solutions
Super User
Super User

Re: Create many-to-many relationship using Flow

Hi @Mike_Guzowski 

When a many to many relationship is created in the CDS, I believe this is actually creating a link entity with two 1 to many relationships. This link entity is then hidden and you have no way to access or modify it. In order to get more control over the relationship and achieve your requirement, I think you will need to create the link entity manually.

For example if you have Entity A and Entity B that need to be linked using a many to many. Create a new entity (Entity C) and add lookup fields to both Entity A and Entity B. This will create a 1 to many from your link entity to both A and B, and therefore creating a many to many between A and B.

 

image.png

 

Then, when you want to create the relationship within Flow. You simply create a new record (Entity C) and set the lookup values for Entity A and Entity B.

Hope that all makes sense.

 


Did I answer your question? Mark my post as a solution!

Proud to be a Flownaut!


Follow me on Twitter at @QG_LeeJHarris

Or on LinkedIn at in/leejharris

View solution in original post

2 REPLIES 2
Super User
Super User

Re: Create many-to-many relationship using Flow

Hi @Mike_Guzowski 

When a many to many relationship is created in the CDS, I believe this is actually creating a link entity with two 1 to many relationships. This link entity is then hidden and you have no way to access or modify it. In order to get more control over the relationship and achieve your requirement, I think you will need to create the link entity manually.

For example if you have Entity A and Entity B that need to be linked using a many to many. Create a new entity (Entity C) and add lookup fields to both Entity A and Entity B. This will create a 1 to many from your link entity to both A and B, and therefore creating a many to many between A and B.

 

image.png

 

Then, when you want to create the relationship within Flow. You simply create a new record (Entity C) and set the lookup values for Entity A and Entity B.

Hope that all makes sense.

 


Did I answer your question? Mark my post as a solution!

Proud to be a Flownaut!


Follow me on Twitter at @QG_LeeJHarris

Or on LinkedIn at in/leejharris

View solution in original post

Highlighted
Kudo Kingpin
Kudo Kingpin

Re: Create many-to-many relationship using Flow

Thanks @LeeHarris . This is how I've workarounded this relationship so far but TBH I think it's a temporary solution. Especially that CDS allow for creating N:N relationship so the lack of functional support seems to be a bug to me.

Helpful resources

Announcements
Community Conference

Power Platform Community Conference

Find your favorite faces from the community presenting at the Power Platform Community Conference!

FirstImage

Microsoft Ignite 2020

Check out the announcement of Power Platform content at Microsoft Ignite!

firstImage

Power Platform 2020 release wave 2 plan

Features releasing from October 2020 through March 2021

Top Solution Authors
Users online (8,166)