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Power Platform Community / Forums / Power Apps / Model Driven (Datavers...
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Model Driven (Dataverse) - Update Record in Table B based on Record in Table A

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Posted on by 439 Season of Giving Solutions 2025

Hi all,

 

I have spent further hours trying to figure out what seems like such a fundamental piece of functionality in Model Driven Apps (using Dataverse) but am still no further forward - can anyone help?

 

Scenario: In a Model Driven App, a user completes a Product Order form - which is based on (saves to) a table named 'EquipmentOrders'. In that form, they specify the Quantity of the product they want to order. The available Quantity is sourced from a table named 'EquipmentQuantities'.

 

On submission of the Product Order Form, the corresponding Quantity in the EquipmentQuantities table should be reduced in accordance with the Quantity the customer specified on the Product Order form.

 

In a Canvas App this would be extremely straightforward via PowerFX. Surely this process is achievable via Model Driven, but how? In the methods I've tried so far, Business Rules can only be applied to a single table (entity) so don't seem to be relational. My separate thread on trying to do this via a Flow (Power Automate) didn't get any replies - can Flow in fact be used?

 

Any help on this would be very much appreciated, thank you very much!

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  • CU-18081211-6 Profile Picture
    9,270 Moderator on at

    @pp365 ,

    yes, powerautomate is a solution for this. Create an automate flow with a trigger - dataverse when an record is created, modified, deleted and then update the infos from EquipmentQuantities based on a new data created EquipmentOrders.

  • pp365 Profile Picture
    439 Season of Giving Solutions 2025 on at

    Hi @gabibalaban ,

    Thanks for replying. Could you share any more details on how to look up the corresponding record using Flow? Full details on the issues I noted with this can be found on my thread, here.

    Any further details would be much appreciated. Thank you!

  • Verified answer
    pp365 Profile Picture
    439 Season of Giving Solutions 2025 on at

    For the benefit of anyone reading this thread in the future, the method I described in the original post is possible and is explained in @lisacrosbie 's brilliant "Power Apps Model Driven Apps" YouTube video in Module 11: Additional Process Automation.

     

    A direct link to the video and chapter is: https://youtu.be/LIC8DFW8fOE?t=11134 . I highly recommend this entire video, a fantastic resource.

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