ISSUE:
Duplicate items appear
when viewing items in Datasheet view in SharePoint. This also happens
when using the Export to Spreadsheet (Excel). If duplicates appear in
Datasheet view, they will also appear during Export to Spreadsheet and vice versa.
DESCRIPTION:
The list has got
versioning switched off, and views fine in standard list view. However, when
you switch to either datasheet view or Excel Export it shows the same rows up
to three times in sequential rows.
WORAROUND/SOLUTION:
The affected lists have
a REQUIRED lookup field which allows multiple values.
If you have a view that
does NOT include this field and it is either a datasheet or you "Switch to
Datasheet" then datasheet shows duplicate items depending on how many
multi-values are selected.
Our work-around was to
create a specific Datasheet view with the field included. The multi-value
field does not show in datasheet, because multi-value lookup fields don't seem
to work in datasheet. However, it's important to include the field in the
view to avoid duplicates.
Unfortunately, if you
have a view that does not include the field and then "Switch to
Datasheet" you will encounter the same problem.
The duplicates appear
also when you try to Export to Excel. If you have a view that would be
affected by the "Switch to Datasheet" duplicates problem, when you
try to Export to Excel, it will also appear.
So before you uncheck
multiple values make sure you do it with the consent of the user.
Reference:
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