How does inflation impact on export and import of a country?

With a rise in inflation rate, domestic currency depreciates against the foreign currency since the purchasing power of domestic currency is eroded.

Because of depreciating domestic currency, though it may seem that exporters are gaining but it depends on the cost of inputs acquired by exporters in order to produce the exportable or final product. With a rise in inflation rate, cost of inputs in domestic country increases. So, it may seem that exporters gain but it may not be the case since their margins may remain the same as prior to increased inflation rate or margins may even decreases if inflation rates are significantly high.

Imports on the other hand become costlier and may not find a significant demand in domestic country because of rising inflation.