How to Deregister Custom Top in EBS?

How To De-register Custom Applications (Doc ID 2085355.1)

To de-register a custom schema, you can run the script 

$AD_TOP/bin/adDeregisterCustomProd.pl 

as follows:

perl adDeregisterCustomProd.pl
  - APPS username
  - APPS Password
  - Application abbreviation for uninstall
  - Application ID (from fnd_application or fnd_product_installations)

Note - : 

Always backup!


Take a full backup (PROD) or backup the tables 
FND_APPLICATION, 
FND_ORACLE_USERID,
 FND_PRODUCT_INSTALLATIONS.