Move a list of items into anther item

Does anyone know of a super quick way to move over 1000 line items in a database into another thing that has a field with a list of those line items?

I have tried using backend workflows, scheduling API’s on lists and nothing seems to work for me.
Is there a tutorial.

Please see my screencast of the issue I’m facing. https://youtu.be/t_aX3CoCc7I

I am unable to copy ad a list of subscriptions into a schedule (that contains a list of those subscriptions)

I’m pretty sure we need more information, but sounds like an inefficient database design.

I would have that list in a seperate table, and just change the reference to that list, but that assumes your other tables can accept that.

I don’t see a lot of data on here, and I’m working from my phone. Can you please give me context as to the columns and the relationships between them? Additionally, you can also put a slight pause in your workflow if you need an extra couple of seconds

Hi Troy, thanks for taking a look.

What you’re seeing is just a reconstructed fraction of the actual app. We have thousands of subscribers to deliveries on a 1,2,3,4 week basis. The subscription holds a lot more information in the actual app like the product. Every week I need to move the relevant subscriptions into a schedule that holds all of the relevant subscriptions - there is a whole lot that can happen with that list in the schedule like transactions, pausing, removing from schedule etc that would take me about 2 pages to explain.

So, whether it appears to be inefficient or not, I’m asking how to quickly move a filtered list of items (subscriptions in this case - that will have nested related information) into to another item with a list of subscriptions (called a schedule in this case)?