Lookup related Many to Many (N:N) records using Flow

[muzhasan]

In my data model I have established a many to many (N:N) relationship between two Entities. When I Get a CDS Record in Flow, how can I lookup any of these Related records?

I have tried Getting Records using the N:N Reationship Entity Name as the Entity, but this isnt recognised as a valid source.

So as a work around I tried to use a Mutli-select Option Set. Again in Flow I was unable to see any of these multi select values on my Record.

Can anyone provide any guidance on how I can work with N:N relationships or Multi-select option sets in Flow? I am loathed to create Custom Entity just to hold the relationships...

[yashag2255]

Hi @muzhasan 

To get the related records for a particular record of the entity, you can loop through and get those records. Please see the solution in the below thread and check if that works for you:

https://powerusers.microsoft.com/t5/Building-Flows/Sales-Rep-from-Dynamics-to-HTML-Table/m-p/291418#...

Hope this Helps!

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[muzhasan]

Thank yo for your response.

Unfortunately I am unable to use any Dynamics 365 actions due to a corporate policy in place. I can only access records using the CDS actions or Web Services.

Is there still a way for me to acheive this?

[yashag2255]

Hi @muzhasan 

Yes. You could do that with the CDS actions too. Please give it a try and let us know if you face any issues. 

[muzhasan]

It is not clear to me from this article how I need to approach this.

My problem is that when I Get a record from entity A, there are no dynamic fields available to the related entity B.

Maybe if we approach this the other way: How can I add a new N:N realtionship between two CDS entities using flow ? If this can be answered then it might explain now these relationships work.

[muzhasan · Accepted solution]

I just found an article which states how to access the related table.

https://www.sikich.com/insight/how-to-find-n-n-relationships-with-dynamics-365-logic-apps-and-flow/

Essentially you have suffix the relationship entity name with the word 'set' and then its can be found using the List records action. 

Just testing it now...