Power Automate Flow Fail

[TMK1]

I have a flow from forms-teams- planner and recently I have gotten this error message. This is the first time for it. Does anyone know what this means? I am assuming that I can't have more than 225 characters in the title, but it goes into a planner.

Schema validation has failed. Validation for field 'Title', on entity 'Task' has failed: The field cannot be longer than 255 characters.

[Rhiassuring]

Yes, that is correct -  you can't have more than 255. You will want to have a check on your titles to ensure that they are not over 255. 

This is a great post in our community that resolved this exact issue: 

https://powerusers.microsoft.com/t5/General-Power-Automate/Planner-Create-a-task-Schema-validation-h...

The resolution to reduce the title automatically was posted by @LeeHarris , and looks like this:

if(greater(length(triggerBody()?['Body']),255),substring(triggerBody()?['Body'],0,255),triggerBody()?['Body'])