Is there a transaction line field that links line items between Opportunities and the same line on an Estimates created by transforming that Opportunity? What if more than one Estimate is created this way?

AI generated answer (using internal Slack threads):

In NetSuite, there isn't a native transaction line field that links line items between Opportunities and the same line on an Estimates created by transforming that Opportunity. The link between these two is typically at the header level, not at the line level. If you need to establish a link at the line level, you would likely need to create a custom solution, such as a custom script or a custom field. For instance, you could create a custom transaction line field and source it from a native transaction line field. However, this would require careful configuration and testing to ensure it works as expected. In the case where more than one Estimate is created from the same Opportunity, the situation becomes more complex. Since the native link is at the header level, it would not differentiate between different Estimates created from the same Opportunity. A custom solution would need to account for this scenario, perhaps by including additional identifiers or checks to distinguish between different Estimates. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******

use linesequencenumber

That works until someone deletes or inserts a line. The line affected and all subsequent lines will now have different Line Sequence numbers for the same items, or the same line sequence numbers for different items. However, that still might be useful for my purposes since scanning through the lines on both records can tell me what's different and I can figure out how to make it the same from there. But since I just want to make the Opportunity have the same lines as the Estimate whenever the Estimate changes, the simple way would be to just delete all the lines off the Opportunity and replace them fresh with all the Estimate lines, whenever the Estimate changes. Done nightly on a Map/Reduce script to Estimates that changed in the past 30 hours, it should ensure synchronization which is what I want it to do.