How to get developer access key

Login to the SAP system and create the user with your requirements.
Then Login to the Service Market Place with your s-user credentials and goto Keys & Requests tab.
Again goto SSCR Keys tab then the below screen will appear

There you can view some services
1. To register a developer user click on Register Developer.
2. To view the list of users created by you then go with Developers registered by me.
3. To register an object then go with Register Object.
4. To view the list of objects created by you then go with Objects registered by me.
5. To view the company registered developers and objects the go for My Company's Registrations.

In this post I am going to register a developer

Click on Register developer button which is highlighted on below screen

Then you will redirect to the below screen

Enter the User name which you have created in SAP earlier and select the installation on which you would like to register the user.
Then click on Register button. It will provide the access key.
Once you get the access key please login to the SAP system with the developer user and execute the transaction SE38.
Try to create on Program with the name Z**** or Y****. Then it will ask you to enter the access key, Please enter the access key which you have got from the SMP and click on continue.

For Confirmation

Goto SE16 and enter the table name as DEVACCESS and click on execute. You will find the created user with access key in result.

THANK YOU