A fix is available
APAR status
Closed as program error.
Error description
The DFHAP1900 message for an EXEC CICS SET MODENAME command that specifies eight blank characters for the MODENAME value omits the MODENAME parameter entirely from the audit message. For example, issuing: EXEC CICS SET MODENAME(' ') CONNECTION(ABCD) ACQUIRED results in: DFHAP1900 01/01/2026 01:02:03 CICSRGN1 NONE CICSRGN1 TRN1 CEMT SET CONNECTION(ABCD) ACQSTATUS(ACQUIRED) RESP(NORMAL) RESP2(0). The DFHAP1900 message makes it appear as though an EXEC CICS SET CONNECTION command was issued rather than an EXEC CICS SET MODENAME command.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS Users. * **************************************************************** * PROBLEM DESCRIPTION: DFHAP1900 audit message omits MODENAME * * keyword when blank MODENAME value is * * specified. * **************************************************************** The DFHAP1900 audit message omits the MODENAME keyword entirely when a CEMT SET MODENAME() command is issued specifying eight blank characters as the MODENAME value, although a blank MODENAME value is valid.
Problem conclusion
CICS has been changed to correctly include the MODENAME keyword in the DFHAP1900 audit message when a blank MODENAME value is specified.
Temporary fix
Comments
APAR Information
APAR number
PH72081
Reported component name
CICS TS Z/OS V6
Reported component ID
5655YA100
Reported release
400
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2026-07-02
Closed date
2026-09-11
Last modified date
2026-09-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UO09358 UO09359 UO09360
Modules/Macros
DFHEITL
Fix information
Fixed component name
CICS TS Z/OS V6
Fixed component ID
5655YA100
Applicable component levels
R400 PSY UO09360
UP26/09/15 I 1000
R500 PSY UO09359
UP26/09/12 I 1000
R600 PSY UO09358
UP26/09/12 I 1000
Fix is available
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Document Information
Modified date:
15 September 2026