EntityState must be set to null, Created (for Create message) or Changed (for Update message)

Hi,

When trying to update an Entity by using LINQ query provider in Dynamics CRM 201 this way:

regardingOpportunity.PriceLevelId = new EntityReference(PriceLevel.EntityLogicalName, rateCard.Id);

MyXrmServiceContext.Update(regardingOpportunity);

.. I came across the following exception:

EntityState must be set to null, Created (for Create message) or Changed (for Update message)

Pretty odd but in my case I get it to work by just using method UpdateObject instead of Update:

regardingOpportunity.PriceLevelId = new EntityReference(PriceLevel.EntityLogicalName, rateCard.Id);

MyXrmServiceContext.UpdateObject(regardingOpportunity);

MyXrmServiceContext.SaveChanges();  

Apparently (honestly not sure), by using UpdateObject record is marked as modified and that allows to save it later.

Hope it helps to save somebody else’s time.

PP [twitter: @pabloperalta]

UruIT Dynamix | Excellence in Dynamics CRM Nearshoring Services.