Duarte's SharePoint info

It seems Microsoft's intended purpose for the workflow history log disappear after 60 days.

Some customers do really want to keep their Workflow history, so here goes 3 options:

1. Disable the Workflow Auto Cleanup timer job completely
2. You can include a specific xml tag in your workflow feature.xml file that controls the number of days retained for the workflow history (max days = 9999)
3. Run a job nightly to force all the workflow history retention settings to a certain number of days (max days = 9999) >> an article was already published in this blog on how to implment such script (http://blogs.tamtam.nl/duarte/default,month,2008-08.aspx)

Honestly the consequences of keeping the whole workflow history is absolutely unknown. But might reduce the performance of whole portal or simple the workflow procedure. Might be noticeable after 1 year or earlier depending on the amount of workflows going on on a daily basis.