BTC/LTC/ETH(PPS+)/Grin: is needed to add workers in your miners backstage, the format is: username.number. For instance, if your mining account username is wfj, the worker name would be: wfj.001, wfj.002, one worker name relates to one number.
For other coin types which is available for ASIC miners, please log in your miner’s backstage. The format should be: wallet address.worker number.
For other coins mined by GPU miners: it is needed to add workers in your mining software, for more details please go and check our mining tutorial in the help center page.