@wefw 

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Hello @wefw ,

You need to configure the onSubmit client script which also applies to the catalog task and use the below line of code in your client script, that will work as you want.

g_form.setVariablesReadOnly(true);

Please mark my answer as accepted and give thumbs up, if it helps you.

Regards,

Abhishek Thakur

this will apply to every variable right, even there is no value in that variable