I sell on eBay, posh mark and mercari. Do I need to put each description separate? In other words, eBay fees on one line, posh mark on one line and Mercari on one line. I would run out of lines. Next, I would put shipping separate or add all 3 and do one line entry? So, I guess my question do I do one entry add all the fees say for postage and put on one line and next all the shipping fees one line entry.
