Start a managed phone-number linking flow.
Unlike genLinkDeviceCodeForPhoneNumber, repeated calls for the same phone number reuse the active code. New codes are emitted through conn.link_code_change only when WhatsApp requests a refresh or the current code expires.
conn.link_code_change
Optional
Start a managed phone-number linking flow.
Unlike genLinkDeviceCodeForPhoneNumber, repeated calls for the same phone number reuse the active code. New codes are emitted through
conn.link_code_changeonly when WhatsApp requests a refresh or the current code expires.