Cannot transfer/copy multiple line of text column to another column in SharePoint 2013

Hi All

Im quite new to SharePoint and Workflows and have run into difficulty with a task that I have been set and was wondering if someone could help me.

I have a list in SharePoint 2013 in which there is a column called Daily_Log_Updates of type multiple line of Text. I want to copy the latest value of this column into another column of type multiple line of text in which the Append Changes is Yes. This column is called Daily Log.

I have managed to create a workflow that is currently carrying out this task for me, however it appends the contents of the Daily_Log_Updates even if other columns are updated in the list creating multiple entries of the same lines of text in the Daily Log

My issue is that I want the workflow to only update the Daily Log  when the Daily_Log_Updates column is amended/updated and not when other columns in the list are updated.

is this possible to d?

Please see my current workflow attached below.

Any help that someone could provide me would be very much greatly appreciated.

Thanks
Tim
sharepointworkflow.docx