Can I send a new bid feed with only new bid information? - 
Video Tutorial
Click here to watch how to place incremental bids via a feed!
Yes, you can. For example, if your initial (full) bid file looks like this:
| category_name | bid_value | n_products | min_cpc |
| Computers and Software > Computer Systems > Laptops | 0.50 | 100 | 0.25 |
| Computers and Software > Monitors | 0.45 | 55 | 0.25 |
| Computers and Software > PDAs | 0.40 | 12 | 0.25 |
| Computers and Software > Computer Systems > Desktops | 0.25 | 68 | 0.25 |
Now, let’s say you only want to change your bids for “Laptops” and “Desktops” and set them to $0.55. You can update the two rows affected and upload the entire feed or you can submit the following incremental feed:
| category_name | bid_value | n_products | min_cpc |
| Computers and Software > Computer Systems > Laptops | 0.55 | 100 | 0.25 |
| Computers and Software > Computer Systems > Desktops | 0.55 | 68 | 0.25 |
Once the above incremental feed is accepted and processed, the “Download your last bid feed” link will allow you to download the incremental feed. The “Download” button, on the other hand, can be used to download all current bids in the system for all your subcategories. Using the example above, feed you download using the ‘Download” button will look like this:
| category_name | bid_value | n_products | min_cpc |
| Computers and Software > Computer Systems > Laptops | 0.50 | 100 | 0.25 |
| Computers and Software > Monitors | 0.45 | 55 | 0.25 |
| Computers and Software > PDAs | 0.40 | 12 | 0.25 |
| Computers and Software > Computer Systems > Desktops | 0.25 | 68 | 0.25 |