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Just wanted to post a possible "simple" solution to a PA bug/annoyance that has been plaguing users for years based on this forum. It took me months of searching and trying everything to find a solution that works for my own flows.
Issue: The expression "null" in update sharepoint item does not actually work for some fields (especially single choice columns, but even multi choice if not done properly). I have seen some solutions using the HTTP request feature but have not used this myself and did not want to complicate my flows.
Solution:
- null expression for fields where it works (date, string seem to be ok)
- for multi choice fields select "switch to input entire array" on the right side of the field (looks like a little square with a T inside ) first and then use the null expression
- for single choice fields, what worked for me was to create a string variable at the start of the flow with an empty initial value and then I assigned this variable to all the single choice fields that wouldn't clear with the null expression (in the flow it will appear that you are assigning a custom value with the big blue X but checking the list item after running this flow, the choice field has been correct set to no choice)
Hope that also works for others and helps someone!
Thank you for your help.
Thank you SO MUCH for posting this. Been tearing my hair out for hours trying to fix this!
Amazing! works perfectly. Thank you!
I was able to remove the data from a multiline column by using an HTTP request and passing the body as:
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{"multilineColumnName":""}
The main advantage of HTTP requests is that you can pass only the columns that you want to change.
I ran into this issue myself when trying to clear multiple field types. I blogged solutions for text, date, number, yes/no, choice (both single and multi), and person column types: How to reset a SharePoint column value to blank using Power Automate | NateChamberlain.com
Hi @EdNYC ,
Thank you so much to provide this intuitive and simple solution. Great work!
Best regards,
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