Troubleshooting: "Numeric format is invalid"

What's happening:

When finishing a Document, or saving a Composite Question line, the following error appears --

Possible solution:

A value is being entered into the field that does not adhere to what is set in the Number question's setup on the Document's setup page. For example, if a Number question is set up to be numeric only (##0) and a user submits a number with a % sign, they will see this error.

In order to confirm how a number question has been set up, access to the Document List under the Setup tab on the Penelope homepage is required. Access to this page may be restricted by Security Class settings and/or a user's User Group.