diff --git a/services/dataProcessor.ts b/services/dataProcessor.ts
index ba21dac..561b0a0 100644
--- a/services/dataProcessor.ts
+++ b/services/dataProcessor.ts
@@ -485,7 +485,7 @@ export const processAdsCSV = (file: File): Promise<AdsRecord[]> => {
                         const unitsRaw = getColumnValue(row, ['units', 'einheiten', 'unidades', 'units sold', 'total units', /\d+\s*day.*unit/i, /unit.*within.*\d+\s*day/i, /total\s+unit/i, /units?\s*sold/i, /^units?$/i, /unit/i, /einheit/i, /unidad/i]);
                         const salesRaw = getColumnValue(row, ['sales', 'umsatz', 'ventas', 'ad sales', 'total sales', 'sales (30d)', /\d+\s*day.*sale/i, /sale.*within.*\d+\s*day/i, /total\s+sale/i, /attributed.*sale/i, /ad\s+sale/i, /^sales$/i, /(?<!cost of )sale/i, /umsatz/i, /ventas/i]);
 
-                        if (!asin || !countryRaw || weekRaw === undefined || weekRaw === '') continue;
+                        if (!countryRaw || weekRaw === undefined || weekRaw === '') continue;
 
                         const weekMatch = String(weekRaw).match(/\d+/);
                         const weekNum = weekMatch ? parseInt(weekMatch[0], 10) : NaN;
@@ -498,7 +498,7 @@ export const processAdsCSV = (file: File): Promise<AdsRecord[]> => {
                             country: mapCountryToMarketplace(String(countryRaw)),
                             year: currentYear,
                             week: weekNum,
-                            asin: String(asin).trim(),
+                            asin: asin ? String(asin).trim() : '',
                             cost: parseCurrency(String(costRaw)),
                             clicks: parseUnits(String(clicksRaw)),
                             impressions: parseUnits(String(impressionsRaw)),
@@ -566,7 +566,7 @@ export const processAdsExcel = async (fileOrBuffer: File | ArrayBuffer): Promise
                 const salesRaw = getColumnValue(row, ['sales', 'umsatz', 'ventas', 'ad sales', 'total sales', 'sales (30d)', /\d+\s*day.*sale/i, /sale.*within.*\d+\s*day/i, /total\s+sale/i, /attributed.*sale/i, /ad\s+sale/i, /^sales$/i, /(?<!cost of )sale/i, /umsatz/i, /ventas/i]);
 
                 // Skip if missing essential data
-                if (!asin || !countryRaw || weekRaw === undefined || weekRaw === '') continue;
+                if (!countryRaw || weekRaw === undefined || weekRaw === '') continue;
 
                 const weekMatch = String(weekRaw).match(/\d+/);
                 const weekNum = weekMatch ? parseInt(weekMatch[0], 10) : NaN;
@@ -581,7 +581,7 @@ export const processAdsExcel = async (fileOrBuffer: File | ArrayBuffer): Promise
                     country: mapCountryToMarketplace(String(countryRaw)),
                     year,
                     week: weekNum,
-                    asin: String(asin).trim(),
+                    asin: asin ? String(asin).trim() : '',
                     cost: parseCurrency(String(costRaw)),
                     clicks: parseUnits(String(clicksRaw)),
                     impressions: parseUnits(String(impressionsRaw)),