Task reminder in SharePoint Online, but don't want to include the weekend days?

Do you like the Network Days function in Excel? And do you need to create reminders to do a task but do not want to include weekend days - here is a trick to exclude them. You can re-create it with SharePoint Online and Flow in 6 simple steps.

1. Create a SharePoint List, name it "Network Days"
2. Create two SharePoint columns:
   1. Create calculated column, name it, "Alert Date"; add the calculation: =IF(WEEKDAY(Created)>3,Created+5,IF(WEEKDAY(Created)>1,Created+3,Created+4))
   2. Create person column, name it "Writer"; allow person only and make this field required.
3. Create a Flow from blank and name it "When an item is created - send an alert 3 days after create date". Select Trigger "SharePoint - When an item is created": Choose Site and List "Network Days"; Select "Add an Action" and type "Schedule - Delay Until": Add dynamic content "Alert Date" in Timestamp field; Select "Add an Action" and type "Office 365 Outlook - Send an Email": Add dynamic content "Writer Email" in the "To" field and format the Subject and Body accordingly.
4. Create a new item and confirm date is 3 days plus the create date not including the weekend. 
5. Flow gets created and pauses until create date plus 3 working days.
6. On Alert Date, you should receive the reminder email.

1. Create a SharePoint List, name it "Network Days".  You can do this by Adding an App and creating a custom list in a SharePoint Online team site.

2. Create two SharePoint columns:

• Create calculated column, name it, "Alert Date"; add the calculation: =IF(WEEKDAY(Created)>3,Created+5,IF(WEEKDAY(Created)>1,Created+3,Created+4))
• Create person column, name it "Writer"; allow person only and make this field required.

  

3.  Create a Flow from blank and name it "When an item is created - send an alert 3 days after create date". Select Trigger "SharePoint - When an item is created": Choose Site and List "Network Days"; Select "Add an Action" and type "Schedule - Delay Until": Add dynamic content "Alert Date" in Timestamp field; Select "Add an Action" and type "Office 365 Outlook - Send an Email": Add dynamic content "Writer Email" in the "To" field and format the Subject and Body accordingl 

4. Create a new item and confirm date is 3 days plus the create date not including the weekend.

5. Flow gets created and pauses until create date plus 3 working days.

6. On Alert Date, you should receive the reminder email.

Resource:

Flow Action - Delay until: http://www.rjesh.com/2017/03/microsoft-flow-pause-till-date.html

SharePoint Weekday function: http://blog.pentalogic.net/2008/11/working-days-weekdays-holidays-sharepoint-calculated-columns/