Recognize entities not identifying email id when it is in Uppercase

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Posted on by KC Maringanti

Power Automate desktop is unable to fetch data with Recognize entities action for an email id when it is in Uppercase. It is working fine with lower case.

Attached UppercaseEmail.png, LowercaseEmail.png screenshots respectively for reference.

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Power Automate Desktop

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11manish 2,983 on at

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For production scenarios, the safest approaches are:

Convert the text to lowercase before entity recognition (simple and effective).

Use Regex extraction if your only goal is to identify email addresses.

Since uppercase email addresses should be recognized correctly, this behavior likely indicates a product limitation or defect in the current Power Automate Desktop version. If the issue persists on the latest PAD release, it would be worth raising it through Microsoft Support or the Power Platform Community as a potential bug.

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Valantis 6,456 on at

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Hi @KC Maringanti,

this is the Recognize entities action's NLP model treating uppercase text differently since it's trained mostly on natural mixed-case text, so it misclassifies all-caps strings as something other than an email entity. Not a bug exactly, more a model limitation with uppercase input.

Since you just need email extraction, skip Recognize entities entirely and use a Regex pattern with PAD's native text matching:
[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}

Use this in a "Get text using regular expression" action set to case insensitive. This catches the email regardless of case and is more reliable for this specific use case than relying on the AI entity recognition model.

If you still want to keep using Recognize entities for other entity types, lowercase just the email portion of your input text before that action as 11manish suggested, that keeps the AI model working on text in the format it expects.

Best regards,

Valantis

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