Read the business's e-signature enrollment (business)

Reports whether the caller accepts their business's MSA by e-signature — the business is enrolled and its allow-list, when it has one, names the caller — the provider this deployment uses, and how the embedded signing page reports progress (protocol and the only allowed message origin). A caller who is not enrolled reads enrolled:false and accepts by click-through. While e-signature is paused on this deployment, an enrolled caller also reads enrolled:false and accepts by click-through, unless a signature request holds the current MSA document named by document_id (or, without document_id, any current MSA document of their business): they keep signing that document by e-signature until the request ends. A document_id that is not one of the business's MSA documents is then 404 document_not_found, as accepting it is. A caller who signs by e-signature while it is not running on this deployment gets 503 — never enrolled:false, because click-through acceptance is refused for them. custody_contracts_enrolled says whether the caller signs their business's custody contracts by e-signature, in which case signing one by click-through is refused (409 esign_required).