Custom symbols support charts and testing, but cannot execute real trades. Adding one does not add an FXTRADING.com trading instrument.
Prepare the symbol and data
Check | What to verify |
Separate name | From Market Watch, open symbol management and Create Custom Symbol. Use a name distinct from broker symbols; a later server-name collision deletes the custom symbol. |
Settings first | Set specifications before importing. Changing formula, tick size/value, chart mode, point value or precision deletes minute/tick history. |
Import preview | Select Bars or Ticks. Check the separator, skipped columns/rows, hourly time shift and selected-row option against the file preview. |
Bar timeframe | History is stored as M1 bars. Importing higher-timeframe bars leaves gaps below that timeframe. |
Replacement interval | Import replaces the whole file time range, including existing rows absent from the file. Back up data first. |
Row quality | Duplicate bar times are errors; multiple identical ticks are allowed. Arrange ticks from earliest to latest. |
Testing dependencies | Required currency-conversion symbols must be available. Custom-symbol optimisation cannot use MQL5 Cloud Network. |
Keep the original file and settings separately. Review a separate test copy before replacing useful history; stop if timestamps, field alignment or coverage differ from your intended dataset.