Use workflows and create new function which dynamically passes your data from one form to another on click of the button

lets assume sale module which dynamically pass your sale order line information to purchase order.

Example

def _prepare_order_line_procurement(self, cr, uid, order, line, move_id, date_planned, context=None):

    return {
        'name': line.name,
        'origin': order.name,
        'date_planned': date_planned,
        'product_id': line.product_id.id,
        'product_qty': line.product_uom_qty,
        'product_uom': line.product_uom.id,
        'product_uos_qty': (line.product_uos and line.product_uos_qty)\
                or line.product_uom_qty,
        'product_uos': (line.product_uos and line.product_uos.id)\
                or line.product_uom.id,
        'location_id': order.shop_id.warehouse_id.lot_stock_id.id,
        'procure_method': line.type,
        'move_id': move_id,
        'company_id': order.company_id.id,
        'note': line.notes
    }

Hello santosh

Do u want to pass your data from CRM to Purchase order form?