Do current users need to Opt-In to NextGen before 25A?

Summary:

I was reviewing the attached discussion, and it mentions that existing customers will need to re-implement any required extensions configured in the current supplier registration. If current users wait for 25A to replace the current registration, will we have to reimplement our current registration setup, specifically the Questionnaire section?

We have been testing in lower environments and we haven't needed to reconfigure anything. Can we expect the same results if we wait until 25A to automatically replace the classic version with NextGen?

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