Dynamics 365 Workflow Activity – Calculate Rollup Field(CalculateRollupFieldRequest)

If you need to update/re-calculate a rollup field by manually or by a condition you can use the below code to create a custom Workflow Activity for yourself. Then use this WF Activity in a workflow based on your business requests.🥳

The best part of this code is, you can use any entity and rollup field you want. It is totally dynamic.🥳

You will have 2 Input parameters.

  • RollupFieldName: Obviously, this is the name of your rollup field like “new_myrollupfield”
  • Record URL: Recourd URL(Dynamic) parameter of your record.

This code retrieves the entity name and ID by Record URL then executes the CalculateRollupFieldRequest.

using System;
using System.Linq;
using System.Activities;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Workflow;
using Microsoft.Crm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Metadata.Query;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Metadata;

namespace D365_Core_Workflows.WorkflowActivities
    public class CalculateRollupField : CodeActivity
        public InArgument<String> RollupFieldName { get; set; }

        [Input("Record URL")]
        public InArgument<String> RecordURL { get; set; }

        #region Service Parameters
        private ITracingService tracingService;
        private IWorkflowContext context;
        private IOrganizationServiceFactory serviceFactory;
        private IOrganizationService service;
        #endregion Service Parameters

        protected override void Execute(CodeActivityContext executionContext)
            #region Initializing Services
                tracingService = executionContext.GetExtension<ITracingService>();
                context = executionContext.GetExtension<IWorkflowContext>();
                serviceFactory = executionContext.GetExtension<IOrganizationServiceFactory>();
                service = serviceFactory.CreateOrganizationService(context.UserId);

                tracingService.Trace("Services are initialized.");
            catch (Exception e)

                throw new InvalidOperationException($"There was an error during initializing the services:  {e.Message}");

            #endregion Initializing Services

            #region Parameters
            tracingService.Trace("Reading Input Parameters");

            var fieldName = this.RollupFieldName.Get(executionContext);
            var recordURL = this.RecordURL.Get(executionContext);

            if (string.IsNullOrEmpty(fieldName) || string.IsNullOrEmpty(recordURL))
                throw new InvalidPluginExecutionException("Input parameters cannot be null!");

            #endregion Parameters

            #region Formatting Parameters
            tracingService.Trace("Starting Formatting Parameters");

            string[] urlParts = recordURL.Split('?');
            if (!urlParts.Any())
                throw new InvalidPluginExecutionException("Input URL is incorrect! Please contact with your System Administrator.");

            string[] urlParameters = urlParts[1].Split('&');

            int parentObjTypeCode = Convert.ToInt32(urlParameters[0].Replace("etc=", ""));
            string recordId = urlParameters[1].Replace("id=", "");

            if (string.IsNullOrEmpty(recordId))
                throw new InvalidPluginExecutionException("Input URL is incorrect! Please contact with your System Administrator.");

            tracingService.Trace("Ending Formatting Parameters");
            #endregion Formatting Parameters

            #region Calculate Rollup
            tracingService.Trace("Starting Calculating Rollup");

            string ParentEntityName = GetEntityNameFromTypeCode(parentObjTypeCode);
            CalculateRollupFieldRequest calculateRollupFieldRequest = new CalculateRollupFieldRequest()
                FieldName = fieldName,
                Target = new EntityReference(ParentEntityName, new Guid(recordId))

            _ = (CalculateRollupFieldResponse)service.Execute(calculateRollupFieldRequest);

            tracingService.Trace("Ending Calculating Rollup");
            #endregion Calculate Rollup

        public string GetEntityNameFromTypeCode(int objectTypeCode)
            MetadataFilterExpression entityFilter = new MetadataFilterExpression(LogicalOperator.And);
            entityFilter.Conditions.Add(new MetadataConditionExpression("ObjectTypeCode", MetadataConditionOperator.Equals, objectTypeCode));
            EntityQueryExpression entityQueryExpression = new EntityQueryExpression()
                Criteria = entityFilter
            RetrieveMetadataChangesRequest retrieveMetadataChangesRequest = new RetrieveMetadataChangesRequest()
                Query = entityQueryExpression,
                ClientVersionStamp = null
            RetrieveMetadataChangesResponse response = (RetrieveMetadataChangesResponse)service.Execute(retrieveMetadataChangesRequest);

            EntityMetadata entityMetadata = (EntityMetadata)response.EntityMetadata[0];
            return entityMetadata.SchemaName.ToLower();


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