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Power Platform Community / Forums / Power Automate / Check if Get Items Act...
Power Automate
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Check if Get Items Action returns more than Zero Records using FLOW

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Posted on by RaphaelMG

Hello all, 

 

Need support cause i'm stuck. 

 

I'm making a flow in power automate and I want to check if the "Get item by ID" has returned a record. 

I've used it a year ago and it worked, i just dont record how i've proceeded last time. 

 

I've tried length(body('Get Item by ID')?['value']) and length(outputs('Get Item by ID')?['body/value']).Error using length.png

 

I have the error :  Unable to process template language expressions for action 'Condition' at line '0' and column '0': 'The template language function 'length' expects its parameter to be an array or a string. The provided value is of type 'Null'. Please see https://aka.ms/logicexpressions#length for usage details.'.

 

Error using length 2.png

 

May Someone helps me please. 

 

I need a support ASAP. 

 

Thanks 

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  • Verified answer
    v-liwei-msft Profile Picture
    v-liwei-msft Microsoft Employee on at

    Hi @RaphaelMG ,

     

     

    Could you please tell me:

    What is your flow trigger? 

    Get Item by ID returns a record, and there is no value field, so body('Get Item by ID')?['value'] returns null. 

    Please make sure you fill in the correct ID in Row ID. 

    You don't need to add a condition to judge, because if your Row ID is entered correctly, flow will return a record.

    I have made a test for your reference:

    1. I have a data source named Levi726Test. 

    vliweimsft_0-1658815660925.jpeg

     

     

    2. This is my flow. 

    vliweimsft_1-1658815660927.jpeg

     

     

    3. When I add a record to the data source, flow will return this record.

     

    vliweimsft_2-1658815660929.jpeg

     

     

    Best Regards,

    Levi

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