The Google Merchant Center Help document was not too long ago up to date with new info. GMC for businesses can now hyperlink as much as 1,000 consumer accounts.
Beforehand, there was no clear info obtainable about account linking limits. Now Google has spelled it out immediately.

Google wrote: “As an company admin, you’ll be able to hyperlink as much as 1000 consumer service provider middle accounts.”
When was Google Service provider Middle for Businesses launched?
Google launched this characteristic in beta in October 2025, earlier than rolling it out to the US and Canada. It then expanded globally in Might 2026.
This replace provides businesses a transparent quantity to work with when managing a number of consumer accounts, which is particularly helpful for bigger businesses dealing with Purchasing campaigns throughout many retailers without delay.
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