Locking the Receivable Invoice Form based on DFF Value

Summary:

There is a requirement where I want to lock the receivable Invoice based on the DFF value. The scenario is, If the DFF value shows the In-process status of being approval, Receivable Invoice form should be locked (Not editable). If the status is Rejected, then only invoice form should be editable and updates can be made.

Is there any possibility whether through SandBox and any workaround, do let me know.

Your response would be highly appreciated.
Thank you

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