curl --request GET \
  --url https://api-m.sandbox.paypal.com/v2/invoicing/accounting-sync/merchant/connections \
  --header 'Authorization: Bearer <token>'

{
  "connections": [
    {
      "platform_name": "<string>",
      "last_sync_time": "<string>",
      "last_sync_status": "IN_PROGRESS"
    }
  ]
}