Hi,
am actually getting an issue while trying to uninstall a custom module, some columns in the _cstm table are being dropped even if āremove_tablesā is set to āfalseā in the manifest. can someone help me
Maybe when youāre trying to delete custom module, then CRM is trying to drop columns from the _cstm table which stores custom fields of the module.
yes thats what is happening but how to avoid the columns to be dropped?
Unfortunately, itās quite possible that this 
is a very untested scenario, and thereās a bug in there somewhereā¦
Can you step through the uninstall code and check what is going wrong?