Where is it possible to configure Document of Records approval flow?

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Hello experts,

our customer asked to configure an approval flow when the employee add document of records.

Where could I define the approval flow and the approver chain?

For example I want the approval flow is triggered when the employee add a document of record; and the approver A should be the first approver then the flow should reach Approver B for final approval.

How can I achieve this?

Thanks in advance for your time!

Kind Regards,

Valerio

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