Given the upcoming move to Synchrony it would be wise to move your credit lines now.
(Edit: Not sure until we see additional data points but noting feedback from another member you may only be able to transfer the Lowe's limit to a Core card. YMMV)
Here's the process:
The system required I leave 1,100 on the Lowe's card and it was approved without issue.
Navigate to the card you want to move the limit to then click:
"Account Services" > "Payment & Credit Options" > "Transfer Available Credit to Another Card," and select the amounts to move.
