The first time you open your copy, a Read Me First sheet walks you through a one-time script authorization. You must complete this before the Startup Wizard will run.

Step 1: Authorize the Script to Run (One-Time Only)

You must perform the following steps for Ultimate Envelopes to work properly.

Step 2: Open Apps Script

Open the Extensions → Apps Script menu to enter the script editor, then select the top file named RunFirst.gs.

Extensions menu open, showing the Apps Script option
Extensions → Apps Script

Step 3: Run the “runFirst” Function

Apps Script editor showing the Run button and the runFirst function
Run the runFirst function

Step 4: Authorize the Script to Run

You’ll see the following prompt.

Authorization required prompt with Review Permissions and Cancel buttons
Authorization required

It says “unsafe,” but it’s safe — this warning appears because the script isn’t published on the Google Marketplace, not because of any actual risk.

Google unverified app warning with the Go to Copy of Envelope (unsafe) link highlighted
Click the “Go to… (unsafe)” link

Step 6: Choose the Account You Want to Authorize

Then click Authorize.

Google account picker to authorize the script
Choose an account

Step 7: After the Script Is Done Running

Refresh your sheet and the Startup Wizard will run.


Note: After the script runs, it will hide this Read Me First sheet.