Getting Error – step 7 migration

Here is one of the errors: Processing][delta] Step #7 migration completed with 23 record(s) in the ‘sales_order_status’ table.
…..PHP Error[2]: Attempt to read property “attributes” on null
My UB Data Migration Pro Tool Dashboard shows that the sales orders are still “Migrating” but only 4598 records out of 59000 have been added. Please advise.
I have tried, clearing tool runtime cache, using command line to run update -- nothing works. Please Help!!

5 answers

Profile photo of ubdev Staff 98390.00 $tone June 2, 2023


As your UB Data Migration license has expired, we are not able to assist with direct technical support.

You can refer to the official guide included in the extension package (readme.html) for assistance with the migration process. Please also check the changelog regarding the latest version at to make sure the the product is compatible with your Magento version.

Profile photo of ubdev Staff 98390.00 $tone June 9, 2023

Hi Stephen,
It seems that the current version of UB Data Migration Pro does not support PHP8.
Unfortunately our UB Data Migration Pro expert is unavailable to assist with debugging the issue and providing a solution. We understand the frustration this may cause, and we deeply regret the inconvenience caused.

As we are not capable of resolving the issue for you, we have taken the initiative to reverse the payment for the renewed license that you recently made.
Once again, we apologize for any inconvenience caused and appreciate your understanding in this matter.

Best regards,

Profile photo of Stephen Chadwick 20.00 $tone June 9, 2023

Can you please help me understand why my step 7 wont run but all other Steps have been complete? I have accomplished this with no issue running on my localhost(xampp). 


Please login or Register to Submit Answer

Written By