InterSystems Cache & Ensemble Error 5547 – Map: %2 – Subscript Expression – invalid expression ‘%1’. Mu

In this blog post, let’s learn about the error message “5547 Map: %2 – Subscript Expression – invalid expression ‘%1’. Mu” in InterSystems Cache & Ensemble and the description of the error message.

Error Message

5547 – Map: %2 – Subscript Expression – invalid expression ‘%1’. Mu

Error Details

Map: %2 – Subscript Expression – invalid expression ‘%1’. Must be a valid field reference. If this is the Master Map, it must be an IDKEY field.