Problem description: Not all values available for a lookup field in the Document Information Panel
I ran into a problem where not all values were available in the Document Information Panel for a certain field. This field was a lookup field to a SharePoint list. The field was defined as a Multiple-Selection List Box in the Document Information Panel.
Solution: Change the Item Limit in the default view on the SharePoint list.
The cause of this problem was the default view defined on the SharePoint list. The number of items displayed in the Item Limit was limited: only those values were shown in the Document Information Panel. Increasing this Item Limit as such that all items were displayed in the default view of the SharePoint list resulted also in displaying all available values in the Document Information Panel for the Multiple-Selection List Box.
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