https://help.tallysolutions.com/docs/td9rel54/td9/getting_started_with_td9/licensing/activating_your_tallydeveloper_9_license.htm

Activating Your Tally.Developer 9 License

You need to activate your Tally.Developer 9 license to use all the features of the product. Activation is a process to validate and authenticate the license.

Your product Serial Number, Activation Key, and e-mail ID are required to activate the license.

To activate your Tally.Developer 9 license

1. Right-click tally.developer.exe , and select Run as Administrator .

2. Go to License > Activate .

3. Enter your Tally.Developer 9 Serial Number , Activation Key , and Administrator e-mail ID , as shown below:

Note: The e-mail ID provided is linked to your Tally.Developer 9 Serial Number, and can be used for all further licensing operations, and interactions with Tally Solutions.

4. Click Submit to activate your license. A message is displayed in the Output tab to confirm the activation request.

5. Go to License > Unlock .

6. E nter the Unlock Key sent to your e-mail ID in the Unlock License screen, as shown below:

7. Press Submit to unlock your license. A confirmation message is displayed in the Output tab once you unlock your license.

See also

Reactivating Tally.Developer 9 license

Updating Tally.Developer 9 license

Configure Tally.Developer 9 license