Amazon has introduced Valid Tracking Rates (VTR) to its seller performance metrics. You can read more about this here:
Crucially this means that they will only count fulfilment updates from Mintsoft as being valid, if the courier/carrier name we provide matches their carrier name.
Valid Carrier Names
The list of carrier names is on the link above (this will be most up to date), but also copied here for reference:
AAA Cooper, ABG, Adrexo, Alljoy, AO, Aolde, Aoluk, Arrow, Arrow UK, AT Post, Australia Post, Belgian Post, Bestbuy, BJS, Bluedart, BRT, Celeritas, Centex, China Post, Chronopost, Cititran, CNE Express, City Link Coliposte, Colissimo, Correos, Correos Express, CTT Express, DBSA, DB-Schenker, Delhivery, Deutsche Post, DHL, DHL Ecommerce, DHL Home Delivery, DHL DE, DHL HB, DHL NL, DHL Parcel, DHL US, DPD, DPD DE, DPD FR, DPD UK, DPGM, DSV, Dtdc, DX Freight, Emirates Post, Energo , Energos, Envialia, Estafeta, Estes Express, Fastway, FDXG, Fedex, Fedex Freight, Firstmile, Furdeco, Gati, Gel, GEL Express, Geodis, GlS, GlS ES, GlS IT, Hermes, Hermes Einrichtungs Service, Hermes UK, Hmshb, Home Logistics, ICC, IDS, India Post, Janio, Japan Post, JCEX, JP Express, Katolec, KNA, Kuehne Nagel, La Poste, MRW, Nexive, Ninjavan, NL Post, Panther, Parcel Force, Pilot Freight, PLTA, Poste Italiane, Q Express, Q Xpress, R+L Carriers, Raben, RBNA, Rhenus, Rieck, Roadrunner, Royal Mail, RPDA, SAIA, SDA, SEFL, Seino, Seur, SF Express, SFC, Singapore Post, Speedex, Startrack, SWA, Teleflora, Tipsa, TNT, TNT IT, TNT NL, TNT UK, TNTA, Tourline Express, Tuffnells, UPS, UPS Freight, USPS, VIR, Vnlin, Wanbang, Watkins, WINIT, XPO, XDP, Yamato, Yanwen, YDH, Yellow Freight, Yodel, Yun Express, Yurtici, 4PX
A lot of these values match the default courier name values in Mintsoft e.g. "Royal Mail", however some differ.
For example, Amazon have set their value as "Parcel Force" with a space in the middle, but in Mintsoft the default value is all one word: "Parcelforce"
External Name Mapping
Where the names differ you would need to create External Name mapping in Shipping > Extras > External Courier Service Names
Then add the mappings required as per below for Amazon - you only need to select the overall courier as per screen shot - and not the individual service;
If you use a courier name that is not on the list of valid carrier names from Amazon in the link above, then you should complete external mappings to your couriers in Mintsoft with a name of Other