Auto Populate a case number on the form each time a new form is filled out.

Unfortunately there is no way of doing this without risking duplicates by two users filling in a form at the same time.

Users have done this by creating a calculated value control on the form that looks up the list to find the last item ID and then constructing a unique number from that. The issue here is that the lookup runtime function is only limited to around 1000 returns so any more than 1000 items in the list will stop this from working.

The second method is to generate the number with a workflow by looking up the next number and then incrementining it by one.
The existing number can be shown on the form and after submission a workflow updates the number so the next form will have a new number. The calculated value control will have to be configured to only calculate in new mode and not edit or view.

Create a List that keeps track of your case number and add the first number to it.

The number column is of type Number.

Create a List that will hold your Inspection reports.

Create a column called Number to store your Case Number.  Make sure it is data type Number.

Create a Nintex Form.

Delete the Number control on the form and replace it with a Calculated Value control.

The calculated value control will look up the case number from the case number list using a Lookup() runtime function. It will be connected to the Number column on the Inspection List. Note: Make sure you set Recalculate on New Mode set to Yes and Edit and View mode set to NO.

Creating a new form shows a case number and submitting it writes it to the inspection list.

Create a worflow that starts on Item creation that looks up the current Case Number and increments it by 1.

Math Operation Configuration. Note that the variable being used is of type Number.  It looks up the current case number and increments it by 1 and saves it into a variable.

The update item action updates the case number to the new case number on the Case Number list.

Start on item creation setting.

When a new item is added the workflow starts and updates the case number ready for the next form.

Next new form that is opened will have the new number.

And so on.

 

 

You connect to the case number list from the Inspection list using a lookup as per the 4th screen shot in my previous post.

If you need assistance with your forms and workflows you can consult a Nintex partner. You can find a partner here : https://www.nintex.com/resources/find-a-partner/