Microsoft.Crm.ObjectModel.MultiCurrencyPlugin

Today I faced an error which took me about three hours to solve it, that messsage appeard when I tried to save a record which I was sure there was no plugins running against it.

Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=6.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: An unexpected error occurred.Detail:
<OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts">
  <ErrorCode>-2147220970</ErrorCode>
  <ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" />
  <Message>An unexpected error occurred.</Message>
  <Timestamp>2014-01-29T16:57:37.9734966Z</Timestamp>
  <InnerFault i:nil="true" />
  <TraceText>

[Microsoft.Crm.ObjectModel: Microsoft.Crm.ObjectModel.MultiCurrencyPlugin]
[f6d4ebbb-0075-407d-8208-26575bfa39af: MultiCurrencyPlugin]

</TraceText>
</OrganizationServiceFault>

I rummaged the whole internet trying to find out the cause of that issue without luck, people on the internet say that it's caused by currency field stuffs, however it wasn't in my case.

Tired I curiously went to check out plugin registration Assemblys, that's when I noticed that the following steps were disabled (don't ask me why).








Enabling those steps solved my problem.

Hope it helps someone else.