VBA: How to prevent Excel from generating 'Object variable or With block variable not set' scenarios when referencing ActiveSheet?
I've looked through the documentation and I'm still confused about I've looked through the documentation and I'm still confused about I'm currently working on a VBA macro that interacts with multiple sheets in an Excel workbook. The goal is to manipulate data on the ActiveSheet based on certain criteria. However, I'm working with an scenario where I'm frequently getting the behavior message: 'Object variable or With block variable not set' when I attempt to reference the ActiveSheet after certain operations. Here's a simplified version of the code I have so far: ```vba Sub ProcessActiveSheet() Dim ws As Worksheet Set ws = ActiveSheet ' Some operations that might affect the ActiveSheet ws.Range("A1").Value = "Processing..." If ws.Cells(1, 1).Value = "Processing..." Then Call AdditionalProcessing End If End Sub Sub AdditionalProcessing() Dim ws As Worksheet ' Trying to reference ActiveSheet again Set ws = ActiveSheet ws.Range("B1").Value = "Done!" End Sub ``` The question arises after calling `AdditionalProcessing`. It seems like the ActiveSheet reference is lost, which causes the behavior. I've tried explicitly setting the worksheet to a variable before calling the subroutine, but it doesn't seem to resolve the scenario. I've also checked if the ActiveSheet is still valid right before the reference, and it appears to be fine. Is there a better way to manage the ActiveSheet reference across subroutine calls without losing its context? Any advice on best practices for handling this situation would be greatly appreciated. This is part of a larger API I'm building.