Payment gateway error message.

[sshtuka]

Hi, My developer testing the payment gateway with LIVE credential and enabled demo mode

but getting below error message, tried to reach PP tech support with no luck.

Array
(
[code] => 40000
[response] => Array
(
[error] => invalid_client Client Authentication failed
[error_description] => Client Authentication failed
)

)

Can someone offer solution

thnx

[Il2]

Hi, My developer testing the payment gateway with LIVE credential and enabled demo mode but getting below error message, tried to reach PP tech support with no luck.