Cannot Make payment for merchant account in C#.

[hari4krishna]

Hello,

I am using Authorize.net DLL package for service.

I created aaccount in sandbox for developing. than in live I used merchant Credential for working live mode. I change enviroment sandbox to PRODUCTION but itsnot working properly and asking for INVOICE NUMBER.

What should I do for this.? Its very Urgent. 

Please Help me.

Thank you.

[Aaron]

Hi @hari4krishna,

Would you mind posting a log of the request that's sent to us, and the exact response you're getting back?