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<h1 class="topictitle1">CHKMSGID (Check Message Identifier) keyword for physical and logical
files</h1>
<div><p>Use this field-level keyword to identify an error message that
is associated with validity checking keywords.</p>
<div class="section"><p>If the CHKMSGID keyword is not specified, a system-supplied message
is used. If the CHKMSGID keyword is specified and the field you are now defining
is referred to later during display file creation, the validity checking information
and the CHKMSGID keyword are copied into the display file. If a validity checking
error is found while checking input from the screen, the error message specified
on the CHKMSGID keyword is displayed on the message line.</p>
<p>CHKMSGID does
not affect the physical or logical file you are defining.</p>
<div class="p">The format
of the keyword is: <pre>CHKMSGID(message-id [library/]message-file [message-data-field])</pre>
</div>
<p>If
the message-data-field parameter is specified, the field it identifies does
not need to be defined in the physical or logical file. However, if the field
containing the CHKMSGID keyword is referred to during display file creation,
the message data field must be defined in the display file (in the same record
format as the field with the CHKMSGID keyword).</p>
<p>CHKMSGID is allowed
only on fields that also contain a VALUES, RANGE, CMP, COMP, CHECK(M10), CHECK(M11),
CHECK(VN), or CHECK(VNE) keyword.</p>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakbmstlfkeyw.htm" title="This topic lists valid keyword entries for describing physical and logical files. They are typed in positions 45 through 80 (functions).">Keyword entries for physical and logical files (positions 45 through 80)</a></div>
</div>
<div class="relinfo"><strong>Related information</strong><br />
<div><a href="../rzakc/rzakcmstdfchkme.htm">CHKMSGID (Check Message Identifier) keyword for display files</a></div>
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