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Power Platform Community / Forums / Power Automate / Issue with Syncing Sha...
Power Automate
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Issue with Syncing SharePoint Sub-Lists to a Master List Using Power Automate

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Posted on by 4

Hello everyone,

I'm working on a project in SharePoint where I need to create a master list that automatically tracks and syncs entries from five different sub-lists. The goal is for the master list to reflect any new entries or updates made in the sub-lists. When a new item is created or modified in any of the sub-lists, a corresponding entry should be created or updated in the master list using Power Automate.

I've followed the steps from this video to set up a flow for syncing one of the lists, and I’ve tried to extend this to cover all five sub-lists. Here’s what I have configured so far:

  • A trigger for "When an item is created or modified" in each sub-list.
  • An action to retrieve items from the master list and check if an entry with the same unique identifier (like the item title or ID) already exists.
  • A condition to either create a new item in the master list or update an existing one based on whether the item is found.

While the flow appears to be set up correctly and shows as successfully executed in Power Automate, nothing actually happens in the master list. Even when new entries are created or updates are made in the sub-lists, no corresponding changes appear in the master list, and no new items are created.

Here are my main questions:

  1. Has anyone encountered a similar issue where the flow runs successfully but doesn’t perform the intended actions in the destination list?
  2. Could there be a problem with the conditions or actions used in the flow, even if it shows as successful?
  3. Are there specific troubleshooting steps to ensure that updates and new entries are reliably synced between multiple sub-lists and a master list in SharePoint?

Any insights or suggestions on how to resolve this would be greatly appreciated!

Thank you!

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  • Suggested answer
    Michael E. Gernaey Profile Picture
    53,968 Moderator on at
    Hi
     

    Please share the actual flow, with inputs etc into your conditions etc.
     
    Then please share a Flow Run, where you say it ran fine. which tells me it didn't because if it did it would have updated the file.
     
    Cheers
  • CU10101038-0 Profile Picture
    4 on at

    Hi FLMike,

    Thanks for the quick reply! 

    Here’s a description of my current flow:

    1. Trigger: The flow is triggered when an item is created in one of the sub-lists. These sub-lists are located on the same SharePoint site as the master list.

    2. Action “Get items”: After the trigger, I use the “Get items” action to reference the master list. I’ve set the filter to ID eq SyncedID (where SyncedID is a column in the master list that corresponds to the item from the sub-list).

    3. Condition: I use the condition length(outputs('Get_items')?['body/value']) to check if the “Get items” action returns any items.

      • If Yes, the flow enters an “Apply to each” loop, where I use the “Create item” action to add a new entry to the master list. The fields are populated as follows:
        • Title = Value from the sub-list’s “Title” field
        • SyncedID = Value from the sub-list’s “ID” field
        • Description = Value from the sub-list’s “Description” field
        • … and so on.
      • If No, the flow also enters an “Apply to each” loop, but this time it uses the “Update item” action. For the ID field, I use the function outputs('Get_items')?['body/value'][0]['ID'] to target the existing item in the master list based on the returned ID. The fields are populated similarly to “Create item”:
        • Title = Value from the sub-list’s “Title” field
        • SyncedID = Value from the sub-list’s “ID” field
        • Description = Value from the sub-list’s “Description” field
        • … and so forth.

    Do you have any ideas on why the data isn’t being pushed to the master list, even though the flow seems to run successfully? I might be overlooking a small detail, or there could be a configuration issue in one of the steps.

    Thanks for the help!

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