@Nishu Jindal Small issue in data migration from Magento 126.96.36.199 to 2.3.5-p1,
SQLSTATE: Integrity constraint violation: 1062 Duplicate entry '21-product-details' for key 'EAV_ATTRIBUTE_GROUP_ATTRIBUTE_SET_ID_ATTRIBUTE_GROUP_CODE'
What is this error mean, shall i delete product-details [ ATTRIBUTE_SET_ID = 21 ]
Thank You @Nishu Jindal
Can you please first cross check whether you have duplicate entries for the "product-details" keyword in database in eav_attribute_group.
If you dont have duplicate records then can you please try doing migration on fresh magento 2 database. Seems like you have tried migration multiple times.
Hope this helps you!
Problem Solved! Click Kudos & Accept as Solution!