date format in lsmw

Dear All,

I need to upload flat file data through lsmw MR21 recording. I have DATE field in flat file in the format of YYYYMMDD.

So, in the final step of LSMW process, the date is coming to the MR21 transaction in the same format of YYYYMMDD and it's saying Invalid date.

Please let me know how to get the correct DATE format in MR21 screen.

Thanks in Advance,

Ranjan