Getting Error "The value 'null' is not valid for operator '>' " creating Quote

[doyeli]

Problem:

Customer reported the following  error when trying to go from step 2 to 3 i create Quote flow.

The value 'null' is not valid for operator '>' 
Error is in expression '{!IF(buttonBarOptions.buttonItems.size>1, true, false)}' in component <apex:outputPanel> in component zqu:productbundleguidedselling

[doyeli · Accepted solution]

Solution:

Customer had Enable Guided Product Selector selected in Advanced Quoting configuration setting and also was using the enhanced product Selector

zqu__EditQuoteProducts VF page as the 3rd step in Quote Wizard

But he didn't have  any Guided product Selector flow and steps created

Problem was resolved after Guided product Selector flow and steps were created

[Marie · Accepted solution]

For an extra tidbit because I was still getting the error after a Guided Product Selector flow and step had been created. I needed to make sure the flow was checked to be included.

[Manojna]

This error might also occur when a cusom GuidedSellingplugin is implemented but it did not retrun any flows

In a particular scenario, it was found that the class name was blank when the plugin was restored to defaults as the custom plugin implementation is no longer required

Once the class name is updatedto zqu.SelectProductsController.GuidedSellingFlowPlugin, error is resolved