New tab not showing on Magento backend - magento

Question

I've created my system.xml under app/code/local/[Namespace]/[Module]/etc directory but it doesn't seem to work.
I understand that the same name given to the tab must be the one I place in the tab tag of the section, and I already have my acl configuration in my config.xml file too.
Can some one help me with this?
<config>
<tabs>
<minimum translate="label" module="minimum">
<label>Ari Modules</label>
<sort_order>10</sort_order>
</minimum>
</tabs>
<sections>
<minimum translate="label" module="minimum">
<label>Minimum Shop Amount</label>
<tab>minimum</tab>
<frontend_type>text</frontend_type>
<sort_order>10</sort_order>
<shown_in_default>1</shown_in_default>
<shown_in_website>1</shown_in_website>
<shown_in_store>1</shown_in_store>
<groups>
<general translate="label" module="minimum">
<label>Configuration</label>
<frontend_type>text</frontend_type>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<fields>
<yes_no_active translate="label">
<label>Active</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>00</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</yes_no_active>
<minimum_amount translate="label">
<label>Minimum shopping amount</label>
<frontend_type>text</frontend_type>
<sort_order>01</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</minimum_amount>
<minimum_message translate="label">
<label>Message to show if the minimum shopping amount is not met</label>
<frontend_type>textarea</frontend_type>
<sort_order>02</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</minimum_message>
</fields>
</general>
</groups>
</minimum>
</sections>
This is my config.xml
<config>
<modules>
<Ari_Minimum>
<version>0.1.0</version>
</Ari_Minimum>
</modules>
<global>
<models>
<minimum>
<class>Ari_Minimum_Model</class>
</minimum>
</models>
<helpers>
<minimum>
<class>Ari_Minimum_Helper</class>
</minimum>
</helpers>
</global>
<default>
<ari>
<general>
<yes_no_active>0</yes_no_active>
<minimum_amount>1500</minimum_amount>
<minimum_message><![CDATA[The minimum shopping amount is %s euros]]></minimum_message>
</general>
</ari>
</default>
<frontend>
<events>
<sales_quote_save_after>
<observers>
<ari_minimum_verifyminimum>
<type>singleton</type>
<class>Ari_Minimum_Model_Observer</class>
<method>verifyMinimum</method>
</ari_minimum_verifyminimum>
</observers>
</sales_quote_save_after>
</events>
</frontend>

Answer 1

<?xml version="1.0" encoding="UTF-8"?>
<config>
<tabs>
<ari translate="label" module="minimum">
<label>Ari Modules</label>
<sort_order>10</sort_order>
</ari>
</tabs>
<sections>
<minimum translate="label" module="minimum">
<label>Minimum Shop Amount</label>
<tab>ari</tab>
<sort_order>1</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<groups>
<general translate="label" module="minimum">
<label>Configuration</label>
<frontend_type>text</frontend_type>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<fields>
<yes_no_active translate="label">
<label>Active</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</yes_no_active>
<minimum_amount translate="label">
<label>Minimum shopping amount</label>
<frontend_type>text</frontend_type>
<sort_order>20</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</minimum_amount>
<minimum_message translate="label">
<label>Message to show if the minimum shopping amount is not met</label>
<frontend_type>textarea</frontend_type>
<sort_order>30</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</minimum_message>
</fields>
</general>
</groups>
</minimum>
</sections>
Then create a file called adminhtml.xml on your module's etc/ folder
<config>
<acl>
<resources>
<admin>
<children>
<system>
<children>
<config>
<children>
<minimum translate="title" module="minimum">
<title>Ari Minimum</title>
<sort_order>999</sort_order>
</minimum>
</children>
</config>
</children>
</system>
</children>
</admin>
</resources>
</acl>
Log out and in , delete your cache storage and try it, you wrote shown_in_* instead of show_in_*
Also, on config .xml, use this instead
<default>
<minimum>
<general>
<yes_no_active>0</yes_no_active>
<minimum_amount>1500</minimum_amount>
<minimum_message><![CDATA[The minimum shopping amount is %s euros]]></minimum_message>
</general>
</minimum>
</default>
Hope this helps