Can we convert from Archetype21 to Archetype47

Hi @siva_vjwd,

I would advise to go through the link Migrating from old aem archetype
Also as a side note refer the comment by @asutosh_jena_on Update Maven Archetype

Hope this helps!

@siva_vjwd 

We have recently migrated from 25 to 47. Here are the pointers we had to work on:

• Move the code in right modules based on  https://experienceleague.adobe.com/en/docs/experience-manager-cloud-service/content/implementing/developing/aem-project-content-package-structure 
• We are updating dispatcher as separate activity than the remaining project. This module needs in-depth involvement to segregate in right structure and files
• Update dependencies in pom.xml
• You might also have old versions of dependencies like ACS Commons etc. Consider updating them separate from Archtype update
• Update java 8->java 11 as a separate activity
• Also, you might run into Solved: Re: GroupID missing from Bundle Symbolic name - Adobe Experience League Community - 692888

The reason why I am suggesting to execute many upgrades separately is to reduce the number of parameters changing in the system

It is also a good time to investigate and clean up redundant stuff.