Comparing Canadian and US advertising begins with separate records. Similar campaign names do not make their prices, shoppers or reporting definitions interchangeable.
Create a market comparison sheet
For each market, record the advertised product, included quantity, price, currency, availability and report period. Keep the original currency beside every amount. If you convert figures for a comparison, state the exchange-rate source and date.
Amazon’s international campaign checklist asks advertisers to consider local products, language and performance. Amazon’s international advertising checklist.
Check what is being compared
Match the ad format and objective before comparing spend or attributed sales. Note report windows, purchase scope and any differences in available targeting. Preserve the source files so the comparison can be traced to the original rows.
Review actual shopper wording in each market. A Canadian search term may need a separate relevance check for the US product, even when both listings are in English.
Keep proposals local
Write any budget or targeting proposal for the specific marketplace. Include the current settings, proposed settings, spending limit and review date. Keep listing, price and A+ changes subject to written OK.
After the change, inspect the same local report definition again. A difference between markets is a reason to investigate product and reporting context; it does not establish a universal budget allocation.