MT4 Message 129
MT4 Code | Severity | Message | Description |
---|---|---|---|
129 | Error | Invalid price. | The market price moved in the meanwhile making the price in the order not feasible. More... |
MT4 Message: Invalid price
Issue

The EA dashboard shows that the order failed because of the market price moved on by the time the order reached the broker, which can happen in trading on a daily basis.
Resolution
In this case the EA automatically sends a new order according to the new market price and recovers from this issue on its own.
Watch out for the 'Count:' figure at the end of the red error message. Only if the Count figure would keep increasing every few seconds or so for longer than 5 - 10 minutes then a closer look would be needed. That could be an indication of a permanent issue which may need investigation and intervention. In this case send a screenshot of the chart showing the EA dashboard including the error message in full to support.