Inconsistent consented_providers format between Prebid Server and Google – integers vs. strings

[pm-isha-bharti]

We've observed a data type inconsistency when passing user.ext.consented_providers_settings.consented_providers in the bid request.

When sending user.ext.consented_providers_settings.consented_providers as an array of strings (e.g., ["12", "321"]), Prebid Server returns 400 Bad Request with following error:

Invalid request: req.user.ext is invalid: cannot unmarshal []int: unexpected character:

Google defines this field as repeated int64 in Protobuf, which translates to an array of strings in JSON. This is a common format in cross-system integrations.

Prebid expects an array of integers (e.g., [12, 321]).

Reference:

• Prebid: here
• Google: Specs in Protobuf: defines repeated int64 → JSON array of strings

Thanks!

[bsardo]

Go and Java teams should investigate whether this a problem.