I am using CSOM in order to import Enterprise Resources in Project Server 2013 from an external file. Resources, in my case, have some custom fields. The code is the following:

    private static void InitializeContext()
        Context = new ProjectContext(PwaPath);
        Context.Credentials = Credentials;

    static void Main(string[] args)

        // Load resources and custom fields

        var newResourceId = Guid.NewGuid();
        var newResourceInfo = new EnterpriseResourceCreationInformation
            Id = newResourceId,
            IsBudget = false,
            IsGeneric = false,
            IsInactive = false,
            Name = "AName",
            ResourceType = EnterpriseResourceType.Work
        EnterpriseResource newResource = Context.EnterpriseResources.GetByGuid(newResourceId);
        LookupTable lTable = Context.LookupTables.First(lut => lut.Name == "SomeText");
        LookupEntry entry = lTable.Entries.First(c => c.FullValue.EndsWith("SomeText"));
        CustomField cField = Context.CustomFields.First(c => c.Name == "aValue");
        newResource[cField.InternalName] = entry.FullValue;

The last 2 lines of code should update the value (read from a lookup table) of the field, but they don't. Anybody has any idea why?

Thanks in advance.

P.s: This question is also asked on SO. In case it should be deleted just let me know and I will.


I think you miss Context.ExecuteQuery(); after Context.EnterpriseResources.Update();

The below simple example show how to update a resource custom field that uses a value that is picked up from a Lookup table by using CSOM that I think can help you.

var cfInternalName = "Custom_aaf4156c7804e511943500155d569905";
            foreach (EnterpriseResource res in resources)
                string[] Newval = new string[] { "Entry_333982d27604e511943500155d569905" };     //Lookup table row value UID without "-"   and small letters                                             
                res[cfInternalName] = Newval;                               

For more details check how to update a resource custom field that uses a value that is picked up from a Lookup table by using CSOM?

  • 1
    thanks for the reply. It helped a lot. What I was doing wrong was assigning the wrong value to the field and, as you mentioned, omitting the Context.ExecuteQuery(); command. It should've been newResource[cdcField.InternalName] = new string[] { cdcEntry.InternalName }; and not newResource[cdcField.InternalName] = cdcEntry.FullValue; – Gentian Kasa Aug 23 '16 at 9:11
  • Good Job my bro , – Mohamed El-Qassas MVP Aug 23 '16 at 10:16

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