error while doing flat file upload

Hi All,

I have one flat file upload for one attribute. And i have placed this load in process chain and it is scheduled for daily.

Everyday it is going fail for this attribute load in the process chain, after that if i run this info package manually it is going success. I dont know why it is running successful when we run manually but not in process chain.

The error messages are :

An error occurred in record 1 during execution ofconversion exit CONVERSION_EXIT_PERI7_INPUT for field FISCPER.

Thanks in advance