Create missing-form-context-bookable-resource.md

Author: m-hartmann

support/dynamics-365/field-service/scheduling/missing-form-context-bookable-resource.md

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+---
+title: 
+description: 
+author: 
+ms.author: 
+ms.reviewer: mhart
+ms.date: 03/13/2025
+ms.custom: sap:Schedule Board
+---
+# 
+
+This article helps resolve issues ........ in Microsoft Dynamics 365 Field Service.
+
+## Symptoms
+
+When opening the form to create a bookable resource, the error message **Cannot read properties of undefined (reading 'getFormContext')** appears when selecting a user from the field.
+
+## Cause
+
+There was a change in the internal handler for the userID field. It now requires a context to be passed in from the form.
+
+## Resolution
+
+You can fix this through an update of the form settings in Power Apps or with a script that you run in the browser's console.
+
+### Update the form in Power Apps
+
+1. Sign in to Power Apps and open the solution that contains the form.
+
+1. Select the user field and go to the events.
+
+1. Look for the *Mscrm.userid_onchange* event handler.
+
+   If the handler doesn't exist: 
+   
+   1. Add a new event of type **On Change**
+   1. Select the **Scheduling/BookableResource/BookableResource_main_system_library.js** library.
+   1. Enter **Mscrm.userid_onchange** in the **Function** field.
+   1. Ensure the checkboxes **Enabled** and **Pass execution context as first parameter** are active.
+
+   If the handler exists: 
+
+   1. Edit the handler and ensure the checkboxe **Pass execution context as first parameter** is active.
+
+1. Save and publish the updated form. 
+
+Edit the handler and make sure that the "Pass execution context as first parameter" is checked
+Save and publish the form