Sorry, but you cannot change the name of a custom protocol BP.

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This is something that doesn't come up very often, about once every two years or so, but it just came up again, so I am going to write about it.

Once you create a custom protocol in IBM Sterling File Gateway, you cannot change the name of the associated business process. Some people assume that you can do it by doing the following steps:

1. Edit the AFTExtensionsCustomer.xml file and change the name of the BP next to "bp=" for the custom protocol, then save the change.
2. Run setupfiles.
3. Run deployer.

Unfortunately, that doesn't work. It is wasted time and effort.  

You really only have two choices as follows:

Choice 1:  Change the content of the original BP to reflect the needed changes, but keep the name of the BP the same, and make the new version the default version.

Choice 2:  Create a new custom protocol and have it use a BP with a different name than the name of the BP in the original custom protocol.

My recommendation is, if you are planning on creating a new custom protocol, but intend to change and update it over time, please leave the name of the associated BP out of the things you plan to update. That means choosing a BP name that will remain relevant even as you gradually update what the BP does.