I have a form designed in InfoPath which was working correctly containing a number of people pickers for traveller and preparer details. I was playing around amending the form in SharePoint designer, looking to allow multiple entries in the traveller field.
Cut a long story short, I didn't want the changes, closed the form (but may have saved it) and now when I try and submit the original form, it comes up with an error "The form cannot be submitted. The form cannot be submitted to the specified SharePoint list or document library. The SharePoint location may be read-only or you may not have permissions to access it." The form works perfectly if the traveller people picker is left blank. The preparer people picker works fine. Anyone help at all?

  • Could it be that you accidentally marked a field as “Enforce unique values” in the InfoPath form while playing around?
    – Celophysis
    Commented Jun 15, 2018 at 8:42

1 Answer 1


Fixed it - I had inadvertently restricted the selection from a specific SharePoint group instead of allowing all users!

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