Order creating using EL01 but not using EASIBI

Hi experts,

I came across a scenario where I have an unmetered installation. When I try to create its billing order using EASIBI by checking the box "Enter Billing order/ME results", it gave me an error EL275 "Installation 4101163371: Entry of meter not possible".

When I tried to create the billing order using EL01, it worked. As per my understanding, you can create MRO or Billing order using EASIBI.

Please provide your input.

Regards,

Sanjeev