Fixed – The method ‘GroupJoin’ cannot follow the method ‘SelectMany’ or is not supported while using LINQ query (Dataverse / Dynamics 365)

Nishant RanaDyn365CE2 months ago16 Views

We might get the below error while using LINQ to query Dataverse – System.NotSupportedException: ‘The method ‘GroupJoin’ cannot follow the method ‘SelectMany’ or is not supported. Try writing the query in terms of supported methods or call the ‘AsEnumerable’ or ‘ToList’ method before calling unsupported methods.’ This error occurs because the GroupJoin method, which is … Continue reading “Fixed – The method ‘GroupJoin’ cannot follow the method ‘SelectMany’ or is not supported while using LINQ query (Dataverse / Dynamics 365)”

Original Post https://nishantrana.me/2025/01/15/fixed-the-method-groupjoin-cannot-follow-the-method-selectmany-or-is-not-supported-while-using-linq-query-dataverse-dynamics-365/

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