To disable all fields in a Dynamics CRM entity form based on a specific field value of its parent entity,

The JavaScript code provided demonstrates how to disable all fields in a Dynamics CRM Contact entity form by retrieving the parent Account's customer type value.

Using Xrm.WebApi, the code retrieves the account record based on its lookup value and checks if the customer type equals 1 to trigger the disabling of fields.

The function 'disableAllFormFields' traverses each control in the form and sets them to disabled, ensuring no user input is allowed when the specified condition is met.

Error handling is implemented to alert the user if there is a problem retrieving the account record, enhancing the robustness of the script.

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