|Text file field name
||XML field name (case sensitive)
|mpn||mpn||Optional (not needed if gtin supplied)
mpn is required only if the product does not have a manufacturer assigned gtin. The product’s Manufacturer Part Number (mpn) must have been assigned by the manufacturer and should be as specific as possible in identifying the product variant e.g. colour.
Supported values are:
- Max 70 alphanumeric characters