Login System with Google Spreadsheet Integration | Membership Web Portal Using Apps Script | C19

Feature	Description
User Login with OTP	Authenticates users using their credentials and sends a one-time password (OTP) via email for enhanced security.
OTP Bypass (7-Day Window)	Allows users to log in without an OTP if they have successfully verified their OTP within the last 7 days.
IP Address Locking	Restricts account access to a specific IP address, preventing logins from unauthorized locations.
Change IP Address with OTP	Enables users to update their registered IP address after verifying their identity through an OTP.
Password Reset with OTP	Allows users to reset their password by validating an OTP sent to their registered email.
Usage Limit Tracking	Monitors and limits the number of accesses a user can perform based on their subscription or plan.
Location Logging	Records the user's approximate location during login using geocoding based on latitude and longitude.
Login & Access History	Maintains logs of all login attempts, OTP sends, and file accesses for auditing and transparency.
Sheet-Based Configuration	Uses Google Sheets to store and manage user credentials, access limits, OTPs, and logs, allowing easy administration.
Dynamic Data Retrieval	Fetches and displays categorized content from different sheets, supporting flexible content organization for users.

Steps to Install!Here the Detailed Steps to Install the Google Web App to Your End

Step	Instructions
Step 1	Open the web app link provided.
Step 2	If you see a Google Sheet in view-only mode: Click on the File button in the top left corner. Select Make a copy from the dropdown menu.
Step 3	If you see a page with two options (Make a Copy and AppScript File): Click on the Make a Copy button.
Step 4	Follow the on-screen instructions to complete the setup.
Step 5	Click on the Extensions menu at the top of the Google Sheet.
Step 6	Select Apps Script from the dropdown menu.
Step 7	In the Apps Script editor, click on the Deploy button.
Step 8	Select New deployment from the dropdown menu.
Step 9	In the deployment configuration, click on Select type and choose Web app.
Step 10	Fill in the required fields and click on Deploy.
Step 11	Grant the necessary permissions when prompted.
Step 12	Once deployed, copy the web app URL provided.

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