When creating items in a sharepoint list, flow is duplicating one randomly

[marcelosal]

Hi everyone

I have a recurrent flow which takes all the items from two different lists (List A and List B) and combines them, creating one item in List C for each AB item. List A currently has 89 items and List B 8. The result I'm looking for is 712 new records in List C. I've run the flow twice and both times got 713 items. 

Filtering through list C, both times I found an item duplicated (different items). It would be good to know what may be causing these to avoid it in future recurrences.

Thanks in advance,

Marcelo

[Gristy]

does the same one get duplicated each time?

Have you flicked through all 89 runs to make sure they are all 8 runs in the second loop? ( i assume they are )

[v-litu-msft]

Hi @marcelosal,

How do you count the number of these items in List C?

By using the Get items action?

If they do have 713, could you find the duplicating one? What's the feature of it?

Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[marcelosal]

Hi

To count them I exported List C to Excel and saw one more record than the expected. Then, I filtered until finding out which one was repeated. It was a different row (the one repeated) in each flow run. It's behaving very weird. I think I will redo the flow.

Thanks.

[v-litu-msft]

Hi @marcelosal,

One possibility is that the process that exported List C to an excel file.

You can count the number of items by using length() function:

Best Regards,
Community Support Team _ Lin Tu
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.