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	<id>https://m204wiki.rocketsoftware.com/index.php?action=history&amp;feed=atom&amp;title=M204.0199</id>
	<title>M204.0199 - Revision history</title>
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	<updated>2026-04-18T07:07:59Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://m204wiki.rocketsoftware.com/index.php?title=M204.0199&amp;diff=120092&amp;oldid=prev</id>
		<title>SteveS at 21:34, 28 February 2024</title>
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		<updated>2024-02-28T21:34:02Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:34, 28 February 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Template:M204.0199 skeleton}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Template:M204.0199 skeleton}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An SNA Communications Server (also known as VTAM) ACB OPEN failed. The reason code stated in the message is explained in the IBM &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;SNA Communications Server Macro Language Reference&amp;lt;/EM&amp;gt; manual or the &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;ACF/SNA Communications Server Programmer&#039;s Reference&amp;lt;/EM&amp;gt; manual. This error can be caused by a variety of conditions. The circumstance and response relevant to this instance are detailed in subsequent M024.3053 and M204.3054 Errors and these are written to the Operator&#039;s Console.asAmong the more common causes of this error are:&amp;lt;/P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An SNA Communications Server (also known as VTAM) ACB OPEN failed. The reason code stated in the message is explained in the IBM &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;SNA Communications Server Macro Language Reference&amp;lt;/EM&amp;gt; manual or the &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;ACF/SNA Communications Server Programmer&#039;s Reference&amp;lt;/EM&amp;gt; manual. This error can be caused by a variety of conditions. The circumstance and response relevant to this &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;failure &lt;/ins&gt;instance are detailed in subsequent M024.3053 and M204.3054 Errors and these are written to the Operator&#039;s Console.asAmong the more common causes of this error are:&amp;lt;/P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;ul&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;ul&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;li&amp;gt;An incorrect name was specified in the VTAMNAME parameter on the User 0 CCAIN parameter line. The name must match a valid SNA Communications Server application defined in the VTAMLST file by an APPLID macro. The Model&amp;amp;nbsp;204 default is &amp;lt;code&amp;gt;M204&amp;lt;/code&amp;gt;.&amp;lt;/li&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;li&amp;gt;An incorrect name was specified in the VTAMNAME parameter on the User 0 CCAIN parameter line. The name must match a valid SNA Communications Server application defined in the VTAMLST file by an APPLID macro. The Model&amp;amp;nbsp;204 default is &amp;lt;code&amp;gt;M204&amp;lt;/code&amp;gt;.&amp;lt;/li&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>SteveS</name></author>
	</entry>
	<entry>
		<id>https://m204wiki.rocketsoftware.com/index.php?title=M204.0199&amp;diff=120091&amp;oldid=prev</id>
		<title>SteveS at 21:26, 28 February 2024</title>
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		<updated>2024-02-28T21:26:13Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 21:26, 28 February 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Template:M204.0199 skeleton}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{Template:M204.0199 skeleton}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An SNA Communications Server (also known as VTAM) ACB OPEN failed. The reason code stated in the message is explained in the IBM &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;SNA Communications Server Macro Language Reference&amp;lt;/EM&amp;gt; manual or the &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;ACF/SNA Communications Server Programmer&#039;s Reference&amp;lt;/EM&amp;gt; manual. This error can be caused by:&amp;lt;/P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An SNA Communications Server (also known as VTAM) ACB OPEN failed. The reason code stated in the message is explained in the IBM &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;SNA Communications Server Macro Language Reference&amp;lt;/EM&amp;gt; manual or the &amp;lt;EM CLASS=&quot;Emphasis&quot;&amp;gt;ACF/SNA Communications Server Programmer&#039;s Reference&amp;lt;/EM&amp;gt; manual. This error can be caused by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a variety of conditions. The circumstance and response relevant to this instance are detailed in subsequent M024.3053 and M204.3054 Errors and these are written to the Operator&#039;s Console.asAmong the more common causes of this error are&lt;/ins&gt;:&amp;lt;/P&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;ul&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;ul&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;li&amp;gt;An incorrect name was specified in the VTAMNAME parameter on the User 0 CCAIN parameter line. The name must match a valid SNA Communications Server application defined in the VTAMLST file by an APPLID macro. The Model&amp;amp;nbsp;204 default is &amp;lt;code&amp;gt;M204&amp;lt;/code&amp;gt;.&amp;lt;/li&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;li&amp;gt;An incorrect name was specified in the VTAMNAME parameter on the User 0 CCAIN parameter line. The name must match a valid SNA Communications Server application defined in the VTAMLST file by an APPLID macro. The Model&amp;amp;nbsp;204 default is &amp;lt;code&amp;gt;M204&amp;lt;/code&amp;gt;.&amp;lt;/li&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>SteveS</name></author>
	</entry>
	<entry>
		<id>https://m204wiki.rocketsoftware.com/index.php?title=M204.0199&amp;diff=105500&amp;oldid=prev</id>
		<title>DmeWiccan: Automatically generated page update</title>
		<link rel="alternate" type="text/html" href="https://m204wiki.rocketsoftware.com/index.php?title=M204.0199&amp;diff=105500&amp;oldid=prev"/>
		<updated>2018-02-14T12:46:14Z</updated>

		<summary type="html">&lt;p&gt;Automatically generated page update&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Template:M204.0199 skeleton}}&lt;br /&gt;
&amp;lt;P&amp;gt;&lt;br /&gt;
An SNA Communications Server (also known as VTAM) ACB OPEN failed. The reason code stated in the message is explained in the IBM &amp;lt;EM CLASS=&amp;quot;Emphasis&amp;quot;&amp;gt;SNA Communications Server Macro Language Reference&amp;lt;/EM&amp;gt; manual or the &amp;lt;EM CLASS=&amp;quot;Emphasis&amp;quot;&amp;gt;ACF/SNA Communications Server Programmer&amp;#039;s Reference&amp;lt;/EM&amp;gt; manual. This error can be caused by:&amp;lt;/P&amp;gt;&lt;br /&gt;
&amp;lt;ul&amp;gt;&lt;br /&gt;
&amp;lt;li&amp;gt;An incorrect name was specified in the VTAMNAME parameter on the User 0 CCAIN parameter line. The name must match a valid SNA Communications Server application defined in the VTAMLST file by an APPLID macro. The Model&amp;amp;nbsp;204 default is &amp;lt;code&amp;gt;M204&amp;lt;/code&amp;gt;.&amp;lt;/li&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;li&amp;gt;A value was specified in the NOTERM parameter on the User 0 parameter line that is smaller than the number of IODEV parameter cards for the type. The Model&amp;amp;nbsp;204 initialization tries to open a second ACB with the same name as the first after it has processed NOTERM number of IODEV cards. This is an open error X&amp;#039;58&amp;#039;.&amp;lt;/li&amp;gt;&lt;br /&gt;
&amp;lt;/ul&amp;gt;&lt;br /&gt;
&amp;lt;p&amp;gt;&lt;br /&gt;
&amp;lt;b&amp;gt;System manager response:&amp;lt;/b&amp;gt; The possible responses are:&amp;lt;/p&amp;gt;&lt;br /&gt;
&amp;lt;ul&amp;gt;&lt;br /&gt;
&amp;lt;li&amp;gt;Verify that the VTAMNAME specified in your User 0 parameter line is a correct application name. Correct the parameter and rerun Model&amp;amp;nbsp;204.&amp;lt;/li&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;li&amp;gt;Verify that the value for NOTERM for each set of IODEV types (7 or 37) equals the number of IODEV parameter cards. Correct the NOTERM value and rerun Model&amp;amp;nbsp;204.&amp;lt;/li&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;li&amp;gt;Verify that the ACB is not already open by another application.&amp;lt;/li&amp;gt;&lt;br /&gt;
&amp;lt;/ul&amp;gt;&lt;br /&gt;
&amp;lt;p&amp;gt;&lt;br /&gt;
&amp;lt;b&amp;gt;Operator response:&amp;lt;/b&amp;gt; Notify the system manager.&amp;lt;/p&amp;gt;&lt;br /&gt;
{{Template:M204.0199 footer}}&lt;br /&gt;
&amp;lt;!-- skeleton as it was in pdf/OPEN FAILED FOR VTAM APPLID %C WITH REASON CODE X&amp;#039;%X&amp;#039;/--&amp;gt;&lt;/div&gt;</summary>
		<author><name>DmeWiccan</name></author>
	</entry>
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