Hi @Nima Pour Greetings! Welcome to Microsoft Q&A forum. Thank you for posting this question here.
Looks like your Azure logic app is sending a success response back to the ADF pipeline Web activity and triggering the Webhook action as a next step. However, the Webhook activity does not finish processing.
Please note that a Webhook activity in ADF pipeline sends a Call back URI in the request body to the endpoint it is invoking. The end point/application invoked has to hit this call back URL to indicate that Webhook activity that the action is complete. The ADF pipeline Webhook activity expects this URI to be invoked before the specified timeout value. If the URI isn't invoked, the activity fails with the status "TimedOut".
Please refer the following thread What is the exact difference between the Web Activity and WebHook Activity in Azure Data Factory and Webhook activity in Azure Data Factory for more information on this.
Hope this answers your question! If this does not help, please inspect the pipeline Monitor section for run history to get more information on why the Webhook activity is failing and share with us for additional analysis.
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