I have an InfoPath Form which submits the text of a textbox and saves it in a SharePoint list. Whenever a user types in more than 255 characters and I want to edit the element in the SharePoint list (e.g. change the value of a custom field) an error appears that the textbox cannot contain more than 255 characters.

It's weird because initially the column can contain more than 255 characters but as soon as I want to edit the element, I get this error.

My question is: How can I turn off the limitation OR how can I display a character counter next to my InfoPath textbox?

Thanks for your help


You have to check the "Allow unlimited length" checkbox on the list column's properties page.

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    Thanks, that works fine if I create a new column. Unfortunately, I can't change the property for an existing column, is it possible to change it? imagebanana.com/view/7ovt483z/Unbenannt.png – aydinch Jun 8 '11 at 14:22
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    are you sure you are in the list settings and the clicked the list column? Another thing is you might have enough permissions to do this – Colin Jun 8 '11 at 14:24
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    I think the setting cannot be changed on some default columns. On custom column types you should be able to change this setting even after creation. – Shihan Jul 6 '11 at 8:50
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    Thanks Colin it worked for me :) I was using a designer form with lots of dynamically created fields in it, was all working fine till today, still cant find out what happened suddenly. – user4686 Sep 7 '11 at 19:34
  • Very helpful answer, +1. One of the reasons I dislike SharePoint. – JᴀʏMᴇᴇ Jan 17 '13 at 17:01

Another good option from another thread:

How to increase the number of characters limit in hyperlink column type

  • While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. - From Review – Asad Refai Apr 11 '18 at 8:53
  • @AsadRefai Internal links are OK :-) – Benny Skogberg Apr 11 '18 at 8:56
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    Cheers @BennySkogberg :) – Asad Refai Apr 11 '18 at 9:13
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    @BennySkogberg IMO it should be a comment, not an answer - as it doesn't carry any information other than the link. They might have posted it as an answer as they don't have enough rep to post comments yet. – Nisarg Apr 11 '18 at 18:21
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    @Nisarg True! I’ll convert tmrw when on PC – Benny Skogberg Apr 11 '18 at 19:05

Forget about InfoPath for a minute. Go directly into the SharePoint list settings and update the field properties. Take out the 255 limitation. Save your changes and then open a new InfoPath form and point it at the list. It will pick up all of your previous changes and as well, your field will not have this 255 length limitation.

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