How do I solve this issue ?

Hello SAP PI Experts,

I have an issue to solve. Please help me with this.

There is an interface which converts an incoming xml file to an outbound IDoc. Sometimes, the interface sends an IDoc successfully to the receiver and there the IDoc goes into error state 60. I checked its content and everything. There was nothing wrong. How do I solve this ?

This issue doesn't happen all the time and I compared the successfuls with this unsuccessful one. There was no change in syntax.

Thanks,

Ajeya G V