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Nintex Newbie

Duplicate Form Numbers

I have custom form numbers.


I am using a workflow that pulls a number from a Master Number List assigns it to the form and then increments after a form number is assigned. 


This is the method I used -


However, twice I have been able to get duplicate numbers. How can I check to make sure that doesn't happen? 

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Automation Master
Automation Master

Re: Duplicate Form Numbers

in sharepoint there is not any reliable source of automatically incremented numbers but internal ID field.


an option might be to use external reliable source like database, webservice...

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