It is proposed to make Economic Activity Indicator mandatory on 010 message in defined circumstances
(ie sites where MIC > 30kva).
An invalid value or blank value (for sites where MIC > 30kva) on the 010 message will be rejected on
101R or 102R messages.
The Reject reason code on 101R and 102R should be ‘IEA’ – Invalid/Incomplete EAI code’

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