an installation done with a Retail Discs won't accept the OEM Key on the COA sticker provided by the Mfg.

to use the OEM supplied COA
For that You need an OEM System Builder Disc:
- (For Distribution Only With a New -PC or required hardware)

Retail has its own COA key set
Enterprise / VLK also is a separate COA key set (all pre-installed use VLK)
OEM System Builder Discs have a separate COA Key

there is also a Refurb. category which also has a separate COA key set

one installation type will not accept a COA key from a different set