Tech Support: Workflow's Invalid Data Error - pmo365 | Project Portfolio Management Solution

Good news: the invalid data error is easy to solve. You may come across this error when you log to history list in a workflow. We came across it when logging the dictionary variable value returned from a HTTP Web Service. The typical error message is: “A text field contains invalid data. Please check the value and try again.”

Details:
A text field may contain invalid data that comes while working with visual studio workflow in SharePoint Online. A “HttpSend” workflow action is used to call the rest API. By using Get Dynamic Value Properties, you can retrieve the values and assign them to different variables, as seen below:

• The issue usually occurs when working on data with more than 255 characters. If the data is less than 255 characters, the error usually does not appear.

• When developing SharePoint solution, you may have experienced this common issue while inserting or updating items in SharePoint lists programmatically.

• This exception occurs when trying to insert text to a column “Description” in the “History List” which is a “single line of text” type with a value that contains more than 255 characters.

Solution:
To solve this issue simply either reduce the size of the log text to below 255 characters or change the attribute of the “Description” column to “Multi line of text”.

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