I have a workflow running from List A that goes out and looks at every item in List B to compare whether there is a file in list B with matching Acct number from item in List A. If it finds a match, I need it to write to a field in List B's matching item. The problem here is that it can't write to the item and I think it's because of the permission issue that happens in regards to permissions and workflows (workflow takes on permissions of initiator). Lists are in the same site.
(Nintex 2010 workflow, SP 2010, InfoPath form 2010)