'The template language function 'length' expects its parameter to be an array or a string.

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Posted on 19 Feb 2025 14:50:29 by CU19021437-1

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.'.

// greater(length(coalesce(outputs('Get_emails_(V3)')?['body/attachments'], array())), 0) is equal to true//

// length(outputs('Get_emails_(V3)')?['body/attachments']) is geater than 0 //

I have traied above formula iam not getting it throws error.

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David_MA 11,833 Super User 2025 Season 2 on 19 Feb 2025 at 21:18:37

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'The template language function 'length' expects its parameter to be an array or a string.

Based on your post, it appears that you are trying to determine if the e-mail contains attachments. If so, change you condition to the value Has Attachments from the trigger is equal to true.

If this is not what you are trying to do, please explain your goal.