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SharePoint 2013 Javascript REST API related: Saving Conflict. code=-2130575305, Microsoft.SharePoint.SPException

I have a function which updates list items. I use fiddler 2 for tracking the traffic. When I stress test the function I get code=-2130575305, Microsoft.SharePoint.SPException error, and the error ...
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1answer
39 views

Would applying a lock help to prevent a Save Conflict Error when simultaneously updating a list item?

I have a scenario where users may update a list item at the same time and this causes a Save Conflict error. I could catch the exception and reload the list item as suggested in ...
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2answers
51 views

Concurrency and SharePoint - Sequence Number Generation

I have a dev question related to concurrency. Here's the problem: I need to generate a sequential reference number for each document uploaded to a specific document library. The numbers basicaly look ...
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0answers
28 views

What is SPXmlDocCache & SPXmlDocCacheRefreshSentinel

I am getting UpdatedConcurrencyException: The object SPXmlDocCacheRefreshSentinel was updated by another user. in ULS during a web application scoped feature uninstall (as part of a solution ...
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1answer
408 views

How many users can login on an extranet concurrently using the same username and password?

I got asked an interesting question regarding the a number of users using a generic login to sign in at the same time across different machines. Is there a particular number that Microsoft recommends ...
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3answers
2k views

Best Practice for Shopping-Cart like functionality in SharePoint

I need to build a Price Quote system on SharePoint, where people can go in to an existing website and instead of adding items to a cart (this company doesn't sell direct) they can add items to a ...
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2answers
6k views

How to find the number of Active Logged in Users across all site collections

I wish to know the possible ways to find out the count of all currently logged in users across all the SharePoint site collections in a farm. For example (users logged into sites) John - ...
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2answers
1k views

How do I handle concurrency problems related to event receivers?

This is a problem that seems to pop up all the time, so I'm wondering if there is an authoritative answer somewhere. I'm using an event receiver (specifically, the ItemUpdated receiverthrough the ...