In the configurable product, how to make the Price of Associated Products Required? (When the price is null, don't make save action success and has some tips.)
Note:
The price is not in the edit page of Associated Products, because the price there does not working.
The price is in the Associated Products tab which is in the configurable product. You could see the image below for reference
To achieve this, you need to rewrite app\design\adminhtml\default\default\template\catalog\product\edit\super\config.phtml file in your custom theme and add required-entry class in the input field.
Update below code
<input id="__id___pricing" type="text" <?php if ($this->isAttributesPricesReadonly() || $this->getCanEditPrice() === false): ?> disabled="disabled" <?php endif;?> class="input-text attribute-price validate-number template no-display" value="'{{pricing_value}}'"/>
with
<input id="__id___pricing" type="text" <?php if ($this->isAttributesPricesReadonly() || $this->getCanEditPrice() === false): ?> disabled="disabled" <?php endif;?> class="input-text attribute-price validate-number template no-display required-entry" value="'{{pricing_value}}'"/>
