Your 480 and 486 exams should still count to get you MCSA: Web Applications. That is the prerequisite for MCSD: App Builder. All you need in addition to the MCSA is one elective exam per year to keep your MCSD: App Builder current. You
can see the list of available electives here:
https://www.microsoft.com/en-us/learning/mcsd-app-builder-certification.aspx
487 would have counted towards the elective requirement, but since you took that in the past you'll need to take a different elective. As soon as you pass one new elective your MCSD: App Builder should be come active for this year. Then you'll
need to take something else next year to keep it active.
Paul Stork SharePoint Server MVP
Owner/Principal Architect: Don't Pa..Panic Consulting
Blog: http://dontpapanic.com/blog
Twitter: Follow @pstork
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