TDP User Transaction Collection Exit (TDPUTCE) is a routine that allows the user to collect statistics about all of the requests and responses that traverse TDP.
The exit can be activated using the TDP ENABLE TMON command, either as part of TDP startup in TDPPARM, or anytime thereafter. It can be deactivated anytime using the TDP DISABLE TMON command.
If the TDPUTCE module is replaced, the new version can be used by first deactivating the old version using the TDP DISABLE TMON command then activating the new version using the TDP ENABLE TMON command. Between the two commands, TDPUTCE is not being used.