I want to keep the records of each approval workflow that is run on an item.

Hi Jason Blackowiak‌,

There are 2 options imo:

1. Create an extra field of type 'Multiple Lines of Text' in which you add info. Configure it with: Append Changes to Existing Text.
2. Create a separate list for it in which you add info.

Do NOT trust on the task list. Completed tasks get removed after 60 days.

Cheers,

Rick

Along the same lines of what Rick Bakker‌ mentioned, couldn't you simply use a Build a string action and keep adding the new URL to the field? As long as it is a multi line text, you should be good to go. You wouldn't need to worry about overwriting the field as you would be appending the new data to the current. So like this:

{WorkflowVariable:varMultiText} 

{WorkflowVariable:varNewURL} 

Store as: {WorkflowVariable:varMultiText} 

Hope this helps!