Trying pass new list item ID via variable: create

Question

In SharePoint online, I created a declarative (designer) workflow on List A. The workflow is triggered on item created.

When a new item is created on List A, it creates new list item in List B.

Once the item gets created in List B, I'm trying to update the List A item.

But currently its's not working. Please suggest some workaround.

Latest workflow screenshot:

Answer 1

There are some workaround for this

• Create hidden custom column name ListAID in List B which save list A current item ID.
• In declarative workflow create variable , like if List B item ListAID
  Column value is equal to List A item ID, then get List B ID column value in
  variable

please see below screen shot

Here you need to use lookup