Symptom
You want to know the step to delete or add the SAP instance from SAP MMC.
Delete SAP Instance
You can delete the whole SAP system or just the instance only. To do this, just click on the SAP SID (for whole SAP system) or the instance name. Then, go to Action > Delete.
Go to File > Add/Remove Snap-in. Click on the SAP Systems and select Remove.
Apply and save your changes. The SAP instance(s) will no longer be at the SAP MMC.
Add SAP Instance
Open the SAP MMC. Go to Add/Remove Snap-in. On the left panel (Available snap-ins), click on SAP Systems Manager and choose Add.
On the following General Settings screen, click Next (accept default value),
Click Next (use default values),
Click Next (use default values),
Put the System and Instance name and click Finish. You will now see the SAP instance in the SAP MMC.
