Need to migrate diff-diff website in M2

Hello UB,

We have 2 websites, 1st has single website in M1 and 2nd has multiple website in M1.
both websites has diff-diff database and code.
 
Now we are going to migrate website 1 in M2, so we prefer UB Data migration pro for it.
we know here we can do delta migration also, but now question is, we need to migrate website 2 in M2, so you extension provide this type of functionality to migrate diff-diff Magento 1.x website in one Magento 2.2.5 website ?

Thanks,
Kaushal

12 answers

Profile photo of ubdev Staff 93040.00 $tone September 7, 2018
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Hi Kaushal,
We’ve just replied to your presale question via email, kindly check and follow up with us there. 
Regards,
Ubertheme team

#1
Profile photo of Kaushal Chauhan 120.00 $tone September 17, 2018
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Hello Ubertheme Team,

We are ready to take separate licenses for all website, we are worried about our requirements.

Our migration tool allows to do delta migration at a later time since your first migration. However, we wonder if the tentative 3-4 months after the first migration means your M2 instance will be officially live before proceeding delta migration?

--> 1st we will migrate abc.com and start to add data as per requirement, after we success in our flow, we will do delta migrate and live our abc.com with M2 platform.
This is what we need right now, if all going well then we will thinking to migrate xyz.com or test.com
At the end in any situation we will migrate all 3 website in M2.

And for that we need delta migration for all 3 website.
We already analyse your UB migration tool, can you please tell me why delta migration is possible for 3rd website only ?

I am waiting for your reply.

Thanks,
Kaushal

#2
Profile photo of ubdev Staff 93040.00 $tone September 17, 2018
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Hi Kaushal, 

We’d like to clarify further below: 

can you please tell me why delta migration is possible for 3rd website only ?

Please note our original answer for your question was based on the assumption that you planned to migrate all 3 Magento 1 dbs into one single Magento 2 instance.
 
As explained via the email, after you complete migration from the 1st M1 db, you will need to clean all migration log of that relates to the 1st M1 db migration before you proceed migration for the 2nd M1 db. You follow the same for the 3rd M1 db. That’s why the delta migration is available for the 3rd M1 db only. There’s no way for our migration tool to handle the delta migration for the first two M1 dbs, without migration logs in place. 

--> 1st we will migrate abc.com and start to add data as per requirement, after we success in our flow, we will do delta migrate and live our abc.com with M2 platform.
This is what we need right now, if all going well then we will thinking to migrate xyz.com or test.com

Our migration tool supports delta migration under two modes -- Default mode via UI Dashboard and CLI mode via terminal: 
Default mode:
If you just migrate newly added items in M1 to M2, you just need to use the delta feature using ‘default mode’ normally.

CLI mode:
If you migrate both newly added items and modified items in M1 to M2, you need to use the delta with CLI mode (using ‘--mode=update’).

IMPORTANT NOTE: the --mode=update will also overwrite existing Magento 2 data that has been migrated from Magento 1.

Based on a few recent complete migration projects, we saw a known issue in case of using CLI mode: 

Supposed that you select ‘Keep Original IDs’ in your first migration. After that, you add new data in your M2 instance (as you mentioned), then you start the delta phase using the ‘-mode=update’. In a few cases, there might be ID conflict issue. 

The workaround to fix above-mentioned conflict is to delete the new items added between the first migration and delta phase in your M2 (NOTE: This conflict occurs only if using ‘Keep Original IDs’ in the first migration). 
Hope that helps. 

Regards,
Ubertheme team

#3
Profile photo of Kaushal Chauhan 120.00 $tone September 17, 2018
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Hello Ubertheme team,

Thank you very much to reply,

Let me clear few things, check my migration step as below,

Step 1: Migrate abc.com in M2.
Step 2: Delta migration for abc.com in M2.
Step 3: Migrate xyz.com in M2.
Step 4: Delta migration for xyz.com in M2.
Step 5: Migrate test.com in M2.
Step 6: Delta migration for test.com in M2.

Is this possible if we clean all migration log before step 3 & step 5.
we will not use ‘Keep Original IDs’ feature.

Thanks,
Kaushal

#4
Profile photo of ubdev Staff 93040.00 $tone September 17, 2018
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Hi Kaushal, 
Regarding your workflow: 

Step 1: Migrate abc.com in M2.
Step 2: Delta migration for abc.com in M2.
Step 3: Migrate xyz.com in M2.
Step 4: Delta migration for xyz.com in M2.
Step 5: Migrate test.com in M2.
Step 6: Delta migration for test.com in M2.
Is this possible if we clean all migration log before step 3 & step 5.

Yes, it’s possible to do so. 
Since you can not proceed migration including delta for a M1 db once you clean all related migration log, please make sure the migration completes successfully and you verify all migrated data ready for use before moving forward with the next M1 db. 
Regarding the multiple licenses, please let us know via the email once you plan to buy, we will discuss in more details on the discount for your case.
Regards,
Ubertheme team

#5
Profile photo of ubdev Staff 93040.00 $tone September 17, 2018
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Hi Kaushal,
We’ve just replied to you via email, please follow up further with us there. 
PS. Your reply was marked in our spam folder, thus we did not notice until you mentioned us here. 
Regards,
Ubertheme team

#7
Profile photo of ubdev Staff 93040.00 $tone September 17, 2018
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Hi Kaushal, 
Thanks for your purchase. 
Should you have any question during the migration process, please submit a new ticket, we will work closely with you. 
Regards,
Ubertheme team

#12

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