Turn on Templates Active on the DocuSign Administration page.
Build the template in DocuSign — create it, add a role for each signer/recipient, place signature and other fields, and give any auto-filled field a clear Data Label.
Run Sync Templates to pull the template into Business Central.
Run Sync Roles (from the template) to pull in its roles, fields, and any dropdown/list options. Re-run this any time the template changes in DocuSign.
Map fields on Tab Mappings: choose BC Field (auto-filled from the source document), User Input (typed in when sending), or Leave for Signer (left blank for the recipient to complete). Mark a field Locked to prevent recipients editing a BC Field value.
Assign the template to document types on Doc Type Template Setup, marking one line Default per document type. If the template has more than one role, also mark a Default role.
Tip: keep a template dedicated to one document type — or a group that shares the same underlying table — since field mappings apply to the whole template, not one specific document type.