Format differences

Message format differences are summarized in the following table:

Table 1. Message format differences
	IBM-supplied default USS table (ISTINCNO)	Default USS table (ISTCFCMM)
Formats messages for:	System console	PPO
Blank suppression available?	Yes	No
Number of blanks after message ID:	1	2
Note: ISTINCNO can be used for the POA if a message is not found in ISTCFCMM. User-defined tables can also be associated with the system console or POAs. For more information about the order of search for a message, see the z/OS Communications Server: SNA Resource Definition Reference.

Pre-Version 4 Example
- In releases prior to Version 4, if you are using the default USS tables for your system console and POAs, and issue a MODIFY USERVAR command from the system console, the PPO will receive a percolated copy of message IST825I in the following format:
```
IST825I USERVAR DEFINED - NAME = NAME1, VALUE = APPL1
```
  This message is identical to the original message built for the system console according to the IBM-supplied default table, ISTINCNO. It has extra blanks suppressed and has one blank following the message ID (IST825I).
- If the MODIFY USERVAR command had been issued from an SPO, the original message IST825I for the SPO and the percolated copy of the message for the PPO would have been formatted according to the default USS table, ISTCFCMM. It would have two blanks following the message ID. Extra blanks would not be suppressed:
```
IST825I  USERVAR DEFINED - NAME = NAME1   , VALUE = APPL1
```
  If the PPO was not available, an exact copy would have been sent to the system console.
Current Version Example
- In the current version, if you are using the default USS tables for your system console and POAs and issue a MODIFY USERVAR command from the system console, the system console will receive message IST825I formatted according to ISTINCNO. Extra blanks will be suppressed and one blank will follow the message ID:
```
IST825I USERVAR DEFINED - NAME = NAME1, VALUE = APPL1
```
- The PPO will receive the percolated message IST825I formatted according to ISTCFCMM. Two blanks will follow the message ID. Extra blanks will not be suppressed:
```
IST825I  USERVAR DEFINED - NAME = NAME1   , VALUE = APPL1
```