"Unknown symbol" — what to change

The signal named an instrument your broker does not carry under that name. PipSync refuses rather than guessing at a similar one.

Fix it

1. Open Market Watch in your terminal and show all symbols, not the default list.
2. Find the real spelling. It is often suffixed: XAUUSD.raw, EURUSD.m, US30.cash.
3. Add a mapping on the channel so incoming names are translated:

GOLD   -> XAUUSD.raw
NAS100 -> USTEC

Then check the size

A suffixed variant is a different symbol with a different contract size — often a tenth. After adding a mapping, check the next trade's lot size before assuming you are done.

When there is no equivalent

Some brokers simply do not offer the instrument. Add it to the channel's symbol block-list so those signals are skipped quietly instead of filling your log with rejections.

Related: Symbol names and broker suffixes.