What values should I add in the stake amount and fee amount?

A minimum of 10 Matic tokens is required for the stake amount whereas heimdall fee should be greater than 10. For example, your stake amount is 400 then the heimdall fee should be 20. We suggest to keep the Heimdall fee as 20.

However, please note that the values entered in stake amount and heimdal-fee-amount should be entered in 18 decimals

For example,

heimdallcli stake --staked-amount 400000000000000000000  --fee-amount 1000000000000000000 --validator 0xf8d1127780b89f167cb4578935e89b8ea1de774f