diff --git a/controllers/po.js b/controllers/po.js
index ec290eb..9b3e393 100644
--- a/controllers/po.js
+++ b/controllers/po.js
@@ -12,17 +12,45 @@ var fs = require("fs");
 const SAPAdapter = require("../adapter/sapadapter.js");
 const sapadapter = new SAPAdapter();
 
+function padSapDateParts(year, month, day) {
+	const y = String(year);
+	const m = String(month).padStart(2, "0");
+	const d = String(day).padStart(2, "0");
+	if (!/^\d{4}$/.test(y) || Number(m) < 1 || Number(m) > 12 || Number(d) < 1 || Number(d) > 31) {
+		return "";
+	}
+	return `${y}${m}${d}`;
+}
+
+function parseCompactSapDate(str) {
+	const year = str.slice(0, 4);
+	const rest = str.slice(4);
+	if (rest.length === 4) {
+		return padSapDateParts(year, rest.slice(0, 2), rest.slice(2));
+	}
+	if (rest.length === 3) {
+		const twoDigitMonth = padSapDateParts(year, rest.slice(0, 2), rest.slice(2));
+		if (twoDigitMonth) return twoDigitMonth;
+		return padSapDateParts(year, rest.slice(0, 1), rest.slice(1));
+	}
+	if (rest.length === 2) {
+		return padSapDateParts(year, rest.slice(0, 1), rest.slice(1));
+	}
+	return "";
+}
+
 function formatSapDate(value) {
 	if (!value) return "";
 	const str = String(value).trim();
 	if (/^\d{8}$/.test(str)) return str;
 	if (/^\d{4}-\d{2}-\d{2}/.test(str)) return str.slice(0, 10).replace(/-/g, "");
+	if (/^\d{6,7}$/.test(str)) {
+		const compact = parseCompactSapDate(str);
+		if (compact) return compact;
+	}
 	const d = new Date(str);
 	if (!isNaN(d.getTime())) {
-		const y = d.getFullYear();
-		const m = String(d.getMonth() + 1).padStart(2, "0");
-		const day = String(d.getDate()).padStart(2, "0");
-		return `${y}${m}${day}`;
+		return padSapDateParts(d.getFullYear(), d.getMonth() + 1, d.getDate());
 	}
 	return str;
 }