Trigger business event on workflow approval process in D365FO

 Trigger business event for the workflow approval process in D365FO.

Got a requirement to do the approval process without clicking the Approve button. upon user submission, the record transitions to a 'Submitted' state and automatically triggers a business event without the need for manual approval. The approver will receive the email notification to Approve.

Way 1: Using WorkflowWorkItemTable

[ExtensionOf(tableStr(WorkflowWorkItemTable))]
final class WorkflowWorkItemTable_Extension
{  
    public void insert()
    {
        PurchTable              purchTable;
        WorkflowWorkItemTable   workflowStatusLoc;
        WorkflowElementTable    workflowElementTable;

        next insert();

        select firstonly workflowElementTable
            where workflowElementTable.ElementId == this.ElementId;

        if (workflowElementTable && !strContains(strUpr(workflowElementTable.Name),"REVIEW"))
        {
            if (this.CompanyId)
            {
                changecompany(this.CompanyId)
                {
                    select firstonly PurchId from purchTable
                        where   purchTable.RecId    == this.RefRecId
                        &&      purchTable.TableId  == this.RefTableId;

                    if(purchTable.PurchId)
                    {
                        //BusinessEvent class code
                    }
                }
            }
            else
            {
                PurchReqTable           purchReqTable;// Global table

                select firstonly PurchReqId from purchReqTable
                  where   purchReqTable.RecId    == this.RefRecId
                  &&      purchReqTable.TableId  == this.RefTableId;

                    if(purchReqTable.PurchReqId)
                    {
                        //BusinessEvent class code
                    }
            }
        }
    }

    // While Reassign this method will trigger
    public void update()
    {
        PurchTable              purchTable;
        WorkflowWorkItemTable   workflowStatusLoc;
        WorkflowElementTable    workflowElementTable;
		
        next update();

        if(this.Status == WorkflowWorkItemStatus::Pending)
        {
            select firstonly workflowElementTable
                where workflowElementTable.ElementId == this.ElementId;

            if(workflowElementTable && !strContains(strUpr(workflowElementTable.Name),"REVIEW"))
            {
                select firstonly PurchId from purchTable
                    where   purchTable.RecId    == this.RefRecId
                    &&      purchTable.TableId  == this.RefTableId;

                if(purchTable.PurchId)
                {
                    //BusinessEvent class code
                }
            }          
        }
    }

Way 2: Using WorkflowTrackingTable

    // It will trigger while Once Approve process starts. 
    [DataEventHandler(tableStr(WorkflowTrackingTable), DataEventType::Inserted)]
    public static void WorkflowTrackingTable_onInserted(Common sender, DataEventArgs e)
    {
        WorkflowTrackingTable   workflowTrackingTable = sender;

        if (workflowTrackingTable.TrackingContext == WorkflowTrackingContext::Approval 
                && workflowTrackingTable.TrackingType == WorkflowTrackingType::Creation)
        {
            WorkflowTrackingStatusTable        workflowTrackingStatusTable;

            select workflowTrackingStatusTable 
                where workflowTrackingStatusTable.RecId == workflowTrackingTable.WorkflowTrackingStatusTable;

            PurchTable              purchTable;

            select firstonly PurchId from purchTable
                where   purchTable.RecId    == workflowTrackingStatusTable.ContextRecId
                &&      purchTable.TableId  == workflowTrackingStatusTable.ContextTableId;

            if(purchTable.PurchId)
            {
                info ('Triggered');
            }
        }
    }

Keep Daxing!!