Direct-Link to the module:
The custom ordernumber overview is splitted into two parts.
custom ordernumber file upload and the
custom ordernumber grid.
The custom ordernumbers can be used instead of the shop ordernumbers.
The custom ordernumber upload allows to import ordernumbers from *.csv, *.xls or *.xlsx files and replace them with existing.
The grid shows a list of all custom ordernumbers. The empty line can be used, to add new custom ordernumbers.