--- title: "FAQ on the migration from Composition Data Center" canonical: "https://support.appfire.com/space/CT/1561595043/FAQ%20on%20the%20migration%20from%20Composition%20Data%20Center" format: markdown --- > Macro (aura-html) Users who are migrating from data center to cloud will be able to retain all macro data. Here are the answers to some questions you may have. | **Question** | I want to migrate Composition Tabs for Confluence Data Center to Coud. Is there anything I need to know before doing the migration? | | --- | --- | | **Answer** | Only [some macros](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1561168539) in Composition Tabs for Confluence Data Center are available in Cloud:
- [Showcase](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562509458) macro is available in Cloud. - There are two different macros for tabbed content available in Cloud: - [Tab Group](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562607835) and [Tab](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562020446) (legacy editor) - [Tabs](https://appfire.atlassian.net/wiki/spaces/CTFCC/pages/1561725840) (new editor) - Only some macros can be migrated to Cloud: - Migration for Showcase macros works out of the box. - [Deck of Cards](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562607623) and [Card](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562509352) can be migrated after performing the mandatory [pre-migration steps](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1562247621). - Other Composition macros not available in Cloud can still be migrated without data loss (read more below). | | **Question** | What happens to the macros / parameters that are not available in Cloud? Will my data be lost? | | --- | --- | | **Answer** | - While these macros / parameters do not have any output and the values are ignored in Cloud, all data will be retained. Some of the macros will be coming to Cloud in future releases. - After the migration, all the unavailable macros in view page mode will be hidden to prevent you from getting the *Unknown macro* errors. | | **Question** | How do I migrate the app to Cloud? | | --- | --- | | **Answer** | 1. Tabbed content macros (Deck of Cards and Card) have to be converted to Tab Group and Tab macros first by following the instructions in [https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1561201208](https://appfire.atlassian.net/wiki/spaces/CTFCSM/pages/1561201208). 2. Once that's done, migrate your content with the Cloud Migration Assistant by Atlassian. All the app data will be migrated automatically. | | **Question** | Will the position of the Tab Groups macro remain the same post-migration to Confluence Cloud. | | --- | --- | | **Answer** | When switching Tab Groups to Tabs macros:
- Top position will remain as top. - Left position will remain as left (known as *side *position in Tabs macro) - Right position will not remain as it is and instead be converted to top position in Tabs macro. | | **Question** | How do I access data from these legacy macros or specific macro parameters? | | --- | --- | | **Answer** | Legacy macros:
- You can access the data by accessing the page's storage format by selecting **More options**  >  **View Storage Format**. | | **Question** | Do I have to do anything to make these data available once the macro feature has been made fully supported in Cloud in future? | | --- | --- | | **Answer** | These functions will automatically pick up the migrated data and work automatically. | | Question | Are there any special cases that I need to be aware of? | | --- | --- | | Answer | Yes, see below:
- The content inside Tab Group and Tab macros may not be displayed the same way in Cloud as they were in Data Center. For example, if the macro contains elements that are not supported in Cloud, it will not be displayed properly in Cloud. This page contains a list of [Incompatible macros when nested within Composition Cloud's Tab and Tab Group macros](https://appfire.atlassian.net/wiki/spaces/CTFCC/pages/1561300405). - Similarly, if the macro contains a third-party macro, you’ll still need to install that first. | | Question | Can I expedite or influence a delivery of a macro or function I need in cloud? | | --- | --- | | Answer | Yes, contact our [Support team](https://appfire.atlassian.net/servicedesk/customer/portal/11) to know more about this. | > ℹ️ ### Can't find what you need? Need more features? > ℹ️ > ℹ️ Contact our [Support team](https://appfire.atlassian.net/servicedesk/customer/portal/11) for guidance and assistance.