Compiling CUSTOM.pll

Steps to Compile CUSTOM.pll in r12 environment:

1) FTP your changed file to $AU_TOP/resource
2) source environment variable in APPL_TOP
3) change directory to $AU_TOP/resource
4) Backup original CUSTOM.pll and CUSTOM.plx files. Incase your changed CUSTOM.plx file has some errors you may not be able to login to Oracle Apps (Forms session will crash). In such cases you may want to revert to the original CUSTOM.pll and CUSTOM.plx files that were shipped with the installation. So its always a good practice to back up them for instance on linux you can use 'mv' command

mv CUSTOM.pll CUSTOM.pll_orig
mv CUSTOM.plx CUSTOM.plx_orig

5) Issue the compile command i.e.
frmcmp_batch module=CUSTOM.pll userid=apps/apps output_file=CUSTOM.plx module_type=LIBRARY batch=yes compile_all=special

6) Log out and log in Oracle Appliations to see the changes