Unable to update Account Address Set using Customer Import FBDI

Summary:

Hi Team, We have already created created customers and their respective accounts , sites. But unfortunately we have uploaded with incorrect Account Address set. But when we try to update it using the same FBDI with Insert/Update Flag as 'U' TCA bulk import program is completed without any error but there is no change in the account address set. It remains the same.

Content (please ensure you mask any confidential information):

Hi Team, We have already created created customers and their respective accounts , sites. But unfortunately we have uploaded with incorrect Account Address set. But when we try to update it using the same FBDI with Insert/Update Flag as 'U' TCA bulk import program is completed without any error but there is no change in the account address set. It remains the same.