https://www.mql5.com/en/forum/10773#!tab=tab_new -
- On the Subscriber's account, the system searches for all symbols with the names coinciding with the Provider's symbol by the first 6 characters. For example, EURUSD == EURUSDxxx == EURUSDyyy.
- Full permission to perform trading is checked for each detected symbol. If trading is allowed partially or completely forbidden, such a symbol is discarded.
- Margin calculation type is checked for each remaining symbol - if it is Forex, a symbol is considered to be suitable. Symbols of CFD, Futures or other calculation types are discarded.
- If no symbols remain after conducting all the checks or more than one symbol is found, it is considered that a symbol mapping attempt has failed and it is impossible to copy Provider's trades for that symbol.
- If one suitable symbol is found, it is used for copying Provider's trades.
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EURUSDm
EURUSDx
EURUSD.
EURUSD

Frequently Asked Questions about the Signals service
- 2013.02.20
- www.mql5.com
Discover in 15 Minutes: Watch the Video about Trading Signals in MetaTrader 4 and MetaTrader 5 The most frequently asked questions related to the S...
19928987002:
显示订阅成功了,卖家开单了,可我的帐户就是不开单,是什么原因?日志显示:
2018.12.04 09:27:01.408 Signal '6803233': signal provider performed deal #2184086 sell 0.39 EURUSD at 1.13580
2018.12.04 09:27:01.408 Signal '6803233': signal copying for 'EURUSD' is prohibited
2018.12.04 09:27:01.408 Signal '6803233': deal #2184086 sell 0.39 EURUSD at 1.13580 skipped as no symbol found
得看下你的设置对不对才行
显示订阅成功了,卖家开单了,可我的帐户就是不开单,是什么原因?日志显示:
2018.12.04 09:27:01.408 Signal '6803233': signal provider performed deal #2184086 sell 0.39 EURUSD at 1.13580
2018.12.04 09:27:01.408 Signal '6803233': signal copying for 'EURUSD' is prohibited
2018.12.04 09:27:01.408 Signal '6803233': deal #2184086 sell 0.39 EURUSD at 1.13580 skipped as no symbol found