IBM Support

IT34133: MFT error message 'BFGIO0121E' incorrectly specifies a fully qualified filename instead of checksum values.

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APAR status

  • Closed as program error.

Error description

  • An error message was output from the Managed File Transfer
    component of the following form:
    BFGIO0121E: An internal error has occurred. Insufficient data
    for checksum state (expected #.#.#.#:/Destination/Filename
    bytes, received {1} bytes)
    instead of the expected error message which would have provided
    the actual size of the file in question.

Local fix

  • n/a

Problem summary

  • ****************************************************************
    This affects users of IBM MQ Managed File Transfer with a
    Protocol Bridge Agent.
    Platforms affected:
    A File Transfer request is made to a Protocol Bridge Agent using
    the checksum md5 options.
    If the validation of the source/destination files fails it will
    report a 'BFGIO0121E' error message, providing a fully qualified
    filename as part of the error description.  However the message
    text stated that this field was to be a numerical field
    representing the expected size for the file in bytes.  In
    addition, the stated received byte size would always display
    For example, a message was output of the form:
    BFGIO0121E: An internal error has occurred. Insufficient data
    for checksum state (expected bytes,
    received {1} bytes)

Problem conclusion

  • The error message has been changed to provide the fully
    qualified filename, as well as the md5 checksum values that was
    expected, as well as those calculated from the file.
    For example, the error message now reads in for the form:
    BFGIO0121E: An internal error has occurred. The expected
    checksum for the file '' does not match
    the data received for the file content (expected
    '87691a7a9ac41be0fc7235d49ab9a6d2' value, received
    '87691a7a9ac41be0fc7235d49ab9a6d2' value).
    The fix is targeted for delivery in the following PTFs:
    Version    Maintenance Level
    v9.2 LTS
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'

Temporary fix


APAR Information

  • APAR number


  • Reported component name

    MQ BASE V9.2

  • Reported component ID


  • Reported release


  • Status


  • PE




  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date


  • Closed date


  • Last modified date


  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    MQ BASE V9.2

  • Fixed component ID


Applicable component levels

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"920"}]

Document Information

Modified date:
25 March 2021