Checked the generation of poll files for sales parser, as per checking, the digits are not set to 3 digits only, modified the application to add 0 if the store code digits are 2 and 00 if 1, if more than 3 digits, the store close should be cut, discussed with sir Glen if what is the place to get for 3 digits, from first or from last, in SSI there are 4 digits store code and it is the limit, thus discussed that the digit for store code should be 4 digits. 
Modified the application to add 000 if the store code digits are 1, 00 if 2, 0 if three, tested the modified application to see if the changes take effect, as per checking, the changes did not take effect, modified the application again to apply the added in the generation of poll files, tested the changes again, as per testing, an error is encountered, the path where the file is to be saved is not found, modified the application again for fixing of the error, and tested it again, as per testing, it is now OK, the changes takes effect for both all store and by store generation.
Sent the generated sample files to sir Glen for checking on his side, as per sir Glen, all is good.