When saving, process code '&' is also deleted in the ALE table

What causes this issue?

In the case of process codes for inbound processing, which are created
for
processing via function modules
the ID - the processing function module here - is not maintained from
this screen, but in the ALE table 'Function modules for ALE-EDI inbound
processing'.
In order to delete the process codes completely, it must also be
deleted in the ALE table, if it exists there.

System Response

When you save, the entry in table TBD52 is deleted.

How to fix this error?

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.