error while extraction from 2lis_03_bfto ODS

Hi I am loading data from 2lis_03_bf to DSO while exraction I am getting following error, how toresolve this problem

InfoObject SOLD_TO does not contain alpa-conforming value 3456

Diagnosis

The system checked whether the loaded InfoObject value conforms to the

conversion exit.The check failed.

For example:

The value '1' was loaded into an InfoObject with alpha exit, even though

the value '0000000001' was expected.

System Response

The load process has failed or the erroneous records are displayed in

the monitor. This does not depend on how error handling is set up.

Procedure

Find out why the data does not conform to the conversion exit, and, if

possible, correct the cause. Possible causes are errors in BI Content or

an error in a customer exit in the source system.

If you cannot correct the problem, you have the option of removing the

conversion exit on the InfoObject. However, since the system has already

been converted, duplicates appear in the system again.

Thanks,

swapna