To start with go to the campaigns screen.
Click Edit product prices. This takes you to the tool.
Click product. This will expand the list of all the products you have in your store. For this example we'll be changing the price of all of the classic unisex t-shirts in your store. Find the classic unisex t-shirt. Click it, and press apply.
If you want to choose specific campaigns, you can select the drop-down under campaigns, select the campaigns you want to change, and apply. As we are doing all, do not select anything.
If you want to choose specific colours, you can select the drop-down under colours, select the colours you wish to change the price for, and apply. As we are doing all colours, do not select anything.
If you want to choose specific sizes, you can select the drop-down under sizes, select the sizes you want to change the price for, and apply. Again, as we are doing all colours, do not select anything.
Now you can choose to increase by a value, increase by a percentage, or set a specific price. We'll choose increase by value here.
Now choose the price increase. We're going to choose one pound here.
You can see the proposed price change in the table below.
Once you are ready, press update prices. You will see a warning telling you that this cannot be undone. As long as you are happy, press update prices.
A task will be added to your task log. It may take a minute to start.
Once completed you can go to your campaigns and check the price changes have been applied.