Market editing requires Premium and an editable catalog for the market. The label next to each market explains whether it is limited or shares prices with another market. Check that label before changing your selection or creating another sale.
Limited markets
The app restricts some foreign-currency markets containing multiple countries when prices include taxes or local currencies are enabled. A task can offer fixed-value actions such as Set new price or Reset fixed prices, while percentage and other relative actions are restricted. These markets can also be unavailable for a sale.
Apply changes only to fixed prices can make relative actions available when you intend to edit prices that are already fixed. It narrows the change; it is not a way to apply the same action to every automatically calculated price. Do not enable it just to dismiss a restriction if that is not the selection you want.
Changing Product prices instead can change the base catalog and other markets that calculate prices from it. It does not isolate the limited market. If only this market should be discounted and its available actions do not fit, ask support about the market's setup before changing prices. Do not change tax settings merely to make a checkbox selectable.
Shared catalogs
If a market says shared catalog (edit via ...), use the named market to edit that shared price list. The editable market shows also affects ..., listing the other markets that use the same prices.
For example, if Germany and another European market share a catalog, editing the price list through Germany also changes the shared prices for the other market. Separate tasks do not isolate countries that still use the same price list. Country-specific independent pricing needs a suitable separate catalog setup in Shopify.
No dedicated catalog
A market labeled no dedicated catalog cannot be edited through that selection in the app. Check its catalog setup in Shopify. If it belongs to a shared catalog, look for the market named as the editable member instead of creating another price change blindly.
After a recent market change in Shopify, allow the market list to sync and reopen the form. If the expected catalog is still unavailable, send the market name and the label you see in the support chat.
Currency selection
The form selects markets with one price list currency per task or sale, even for a percentage change. If a different-currency market becomes unavailable after you select the first market, create a separate operation for that currency.
When your store includes taxes in prices, the form permits only one market at a time, including markets with the same currency. Shared-catalog effects still apply to that single selection.
Shopify Markets in this app refers to market price lists. It is not a selector for different POS locations or a first-class B2B company-location pricing feature.