You should accept all the symbols in the Market Watch.
1.If all the symbols are accepted so "signal copying for 'EURUSD' is prohibited by your broker" means the following:
the copy for this symbol is prohibited by the broker (or by symbol specification).
2."symbol EURUSD not found" - this message is related to the mapping.
more about mapping:
Forum on trading, automated trading systems and testing trading strategies
Cannot copy signal of XAUUSD from the signal provider
Sergey Golubev, 2021.08.20 07:39
It may be mapping, or XAUUSD is not forex symbol for this/your broker.
More details:
- mapping #7
and - "no symbol found"; forex symbols (incl two scripts to check): https://www.mql5.com/en/forum/367553

You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
i jus subscrib a mt5 signal, my brokers have two types of symbols, e.g. EURUSDp for real trading, and ERUUSD FOR ATA FEED AND UNAVAILABLE FOR TRADE, FROM THE JOUNARL LOG, I SEE THE FOLLOWING MSEEAGE:
2021.09.08 02:05:23.497 Signal '60101116': money management: use 70% of deposit, equity limit: 0.00 USD, deviation/slippage: 5.0 spreads, copy SL/TP: enabled
2021.09.08 02:05:23.497 Signal '60101116': connecting to signal server
2021.09.08 02:05:24.089 Signal '60101116': signal copying for 'EURUSD' is prohibited by your broker
2021.09.08 02:05:24.089 Signal '60101116': symbol EURUSD not found
2021.09.08 02:05:24.089 Signal '60101116': signal copying for 'GBPUSD' is prohibited by your broker
2021.09.08 02:05:24.089 Signal '60101116': symbol GBPUSD not found
2021.09.08 02:05:24.089 Signal '60101116': signal provider has balance 947.57 USD, leverage 1:400; subscriber has balance 1500USD, leverage 1:400
IT SEEMS THE TERMINAL WRONG MAP THE SYMBOL TO UNTRADLE EURUSD SYMBOL BUT IT IGNORE THE PROPER SYMBOL EURUSDp,how can i let mql5 signals correctly map the right trading suffix symbols and start proper trade copying?