Executing Ethereum (Azure Blockchain services) Smart Contract from Microsoft Flow

[manjotsingh057]

I have smart contract deployed on Azure blockchain services (Ethereum).

I am trying to execute that smart contract from Microsoft Flow but getting below error.

Any idea what can be the issue here ?

Error  - Encountered RPC error when establishing communication  with the blockchain network -32602. Invalid argument 0: hex string has length 30, want 40 for common.address

I am getting this error while using Execute Smart Contract Action in MS flow but when i use Query Smart Contract Action it works fine(but doesn't solve my purpose).

About Smart Contact - there is a very basic contract which has a "retrieve" function that just returns a number. This function even does not accept any parameter.