Summer 22 v55.0 Flow Deployment Error

Question

A Flow metadata deployment to a Summer 22 (v55.0) org causes an error:

{!FlowScreenFieldName} (Screen Component) - Because the "{!FlowScreenFieldName}" screen field 
on the "{!FlowScreen}" screen is a section, the regionContainerType is required.

What is wrong with Flow metadata if it is fully deployable to previous versions orgs and how to fix that?

Answer 1

The regionContainerType field of the FlowScreenField metadata component was introduced in API version 55.0. Although it is not documented, when the component type is a Section this field is required.

To fix that simply manually add regionContainerType element with SectionWithoutHeader value to a Flow metadata file:

<?xml version="1.0" encoding="UTF-8"?>
<Flow xmlns="http://soap.sforce.com/2006/04/metadata" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  ...
  <screens>
    <name>FlowScreenName</name>
    <label>FlowScreen Label</label>
    <fields>
      <name>FlowScreenName_SectionN</name>
      <regionContainerType>SectionWithoutHeader</regionContainerType>
      ...
    <fields>
  </screens> 
</Flow>

The easier way would be retrieving Flow instances from updated to Summer 22 sandbox instances if the metadata in the project repository matches the last deployed metadata. After that, all the flow screen sections will be automatically updated with <regionContainerType>SectionWithoutHeader</regionContainerType> element.

Answer 2

This seems to be a bug in how the metadata is retrieved. For example, in VS Code if you retrieve the flow metadata via the Org Browser the value will not appear in the metadata. However, if you use the explorer or command line to pull the metadata the value will be retrieved. This has worked for us and allowed us to continue deployment.

Answer 3

I had a similar issue: deploying a flow (metadata 57.0) to the spring 23 sandbox (v.55) and still got the strange error message "Property 'regionContainerType' not valid in version 53.0". In that case, I had to remove the tag

        <regionContainerType>SectionWithoutHeader</regionContainerType>