diff --git a/routes/operations.js b/routes/operations.js
index ca4cb6e..ca44ab9 100644
--- a/routes/operations.js
+++ b/routes/operations.js
@@ -31,6 +31,7 @@ module.exports = function(pool) {
         );
         const colMeta  = colResult.rows;
         const dimCols  = colMeta.filter(c => c.role === 'dimension').map(c => c.cname);
+        const dateCols = colMeta.filter(c => c.role === 'date').map(c => c.cname);
         const valueCol = colMeta.find(c => c.role === 'value')?.cname;
         const unitsCol = colMeta.find(c => c.role === 'units')?.cname;
 
@@ -48,6 +49,8 @@ module.exports = function(pool) {
             table: fcTable(version.tname, version.id),
             colMeta,
             dimCols,
+            dateCols,
+            filterCols: [...dimCols, ...dateCols],
             valueCol,
             unitsCol,
             sql: sqlResult.rows[0].sql
@@ -303,7 +306,7 @@ module.exports = function(pool) {
             const ctx = await getContext(parseInt(req.params.id), 'scale');
             if (!guardOpen(ctx.version, res)) return;
 
-            const whereClause   = buildWhere(slice, ctx.dimCols);
+            const whereClause   = buildWhere(slice, ctx.filterCols);
             const excludeClause = buildExcludeClause(ctx.version.exclude_iters);
 
             let absValueIncr = value_incr || 0;
@@ -361,7 +364,7 @@ module.exports = function(pool) {
             const ctx = await getContext(parseInt(req.params.id), 'recode');
             if (!guardOpen(ctx.version, res)) return;
 
-            const whereClause   = buildWhere(slice, ctx.dimCols);
+            const whereClause   = buildWhere(slice, ctx.filterCols);
             const excludeClause = buildExcludeClause(ctx.version.exclude_iters);
             const setClause     = buildSetClause(ctx.dimCols, set);
 
@@ -398,7 +401,7 @@ module.exports = function(pool) {
             if (!guardOpen(ctx.version, res)) return;
 
             const scaleFactor   = (scale != null) ? parseFloat(scale) : 1.0;
-            const whereClause   = buildWhere(slice, ctx.dimCols);
+            const whereClause   = buildWhere(slice, ctx.filterCols);
             const excludeClause = buildExcludeClause(ctx.version.exclude_iters);
             const setClause     = buildSetClause(ctx.dimCols, set);
 
diff --git a/ui/src/views/Forecast.jsx b/ui/src/views/Forecast.jsx
index 3fffda6..93192ca 100644
--- a/ui/src/views/Forecast.jsx
+++ b/ui/src/views/Forecast.jsx
@@ -113,11 +113,15 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
     const unitsCol = colMetaRef.current.find(c => c.role === 'units')?.cname
     if (!valueCol && !unitsCol) return
     try {
-      const dimNames = new Set(colMetaRef.current.filter(c => c.role === 'dimension').map(c => c.cname))
+      const dimNames  = new Set(colMetaRef.current.filter(c => c.role === 'dimension').map(c => c.cname))
+      const dateNames = new Set(colMetaRef.current.filter(c => c.role === 'date').map(c => c.cname))
       const filters = [
         ...Object.entries(sliceObj)
           .filter(([col]) => dimNames.has(col))
           .map(([col, val]) => [col, '==', val]),
+        ...Object.entries(sliceObj)
+          .filter(([col]) => dateNames.has(col))
+          .map(([col, val]) => [col, '==', Number(val)]),
         ['pf_iter', '!=', 'reference'],
       ]
       const view = await tableRef.current.view({ filter: filters })
@@ -385,7 +389,9 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
 
   async function submitOp(op) {
     if (!Object.keys(slice).length) { flash('Select a slice first', 'error'); return }
-    let body = { pf_user: 'admin', slice }
+    const effectiveSlice = buildEffectiveSlice(slice)
+    if (!Object.keys(effectiveSlice).length) { flash('No dimension or date columns in slice — check col_meta', 'error'); return }
+    let body = { pf_user: 'admin', slice: effectiveSlice }
 
     if (op === 'scale') {
       let vi = null, ui = null
@@ -430,6 +436,50 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
     } catch (err) { flash(err.message, 'error') }
   }
 
+  function buildEffectiveSlice(raw) {
+    const dimCols  = new Set(colMetaRef.current.filter(c => c.role === 'dimension').map(c => c.cname))
+    const dateCols = new Set(colMetaRef.current.filter(c => c.role === 'date').map(c => c.cname))
+    const out = {}
+    for (const [k, v] of Object.entries(raw)) {
+      if (dimCols.has(k)) { out[k] = v; continue }
+      if (dateCols.has(k)) {
+        const ms = Number(v)
+        out[k] = isFinite(ms) ? new Date(ms).toISOString().slice(0, 10) : v
+      }
+    }
+    return out
+  }
+
+  function buildPayload(op) {
+    if (!Object.keys(slice).length) return null
+    const effectiveSlice = buildEffectiveSlice(slice)
+    let body = { pf_user: 'admin', slice: effectiveSlice }
+    if (op === 'scale') {
+      let vi = null, ui = null
+      if (scaleMode === 'target') {
+        const curValue = currentTotals?.total?.value
+        const curUnits = currentTotals?.total?.units
+        if (scalePrice !== '' && curUnits != null && curValue != null)
+          vi = (parseFloat(scalePrice) * curUnits) - curValue
+        if (scaleValue !== '' && curValue != null)
+          vi = parseFloat(scaleValue) - curValue
+        if (scaleUnits !== '' && curUnits != null)
+          ui = parseFloat(scaleUnits) - curUnits
+      } else {
+        if (scaleValue !== '') vi = parseFloat(scaleValue)
+        if (scaleUnits !== '') ui = parseFloat(scaleUnits)
+      }
+      body = { ...body, note: scaleNote || undefined, value_incr: vi, units_incr: ui, pct: scaleMode === 'delta' && scalePct }
+    } else if (op === 'recode') {
+      const set = Object.fromEntries(Object.entries(recodeSet).filter(([, v]) => v.trim()))
+      body = { ...body, note: recodeNote || undefined, set }
+    } else if (op === 'clone') {
+      const set = Object.fromEntries(Object.entries(cloneSet).filter(([, v]) => v.trim()))
+      body = { ...body, note: cloneNote || undefined, set, scale: parseFloat(cloneScale) || 1 }
+    }
+    return body
+  }
+
   function flash(text, type = 'ok') {
     setMsg({ text, type })
     setTimeout(() => setMsg(null), 3000)
@@ -785,6 +835,7 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
                   )}
 
                   <Row label="Note"><input value={scaleNote} onChange={e => setScaleNote(e.target.value)} placeholder="optional" className={inp} /></Row>
+                  <PayloadPreview payload={buildPayload('scale')} />
                   <Submit onClick={() => submitOp('scale')}>Apply Scale</Submit>
                 </>}
 
@@ -797,6 +848,7 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
                     </Row>
                   ))}
                   <Row label="Note"><input value={recodeNote} onChange={e => setRecodeNote(e.target.value)} placeholder="optional" className={inp} /></Row>
+                  <PayloadPreview payload={buildPayload('recode')} />
                   <Submit onClick={() => submitOp('recode')}>Apply Recode</Submit>
                 </>}
 
@@ -810,6 +862,7 @@ export default function Forecast({ sources = [], sourceId, versionId, refreshSou
                   ))}
                   <Row label="Scale"><input type="number" step="any" value={cloneScale} onChange={e => setCloneScale(e.target.value)} className={inp} /></Row>
                   <Row label="Note"><input value={cloneNote} onChange={e => setCloneNote(e.target.value)} placeholder="optional" className={inp} /></Row>
+                  <PayloadPreview payload={buildPayload('clone')} />
                   <Submit onClick={() => submitOp('clone')}>Apply Clone</Submit>
                 </>}
               </div>
@@ -868,3 +921,12 @@ function Submit({ onClick, children }) {
     </button>
   )
 }
+
+function PayloadPreview({ payload }) {
+  if (!payload) return null
+  return (
+    <pre className="text-xs font-mono text-gray-400 bg-gray-50 border border-gray-100 rounded p-2 overflow-auto max-h-36 leading-relaxed">
+      {JSON.stringify(payload, null, 2)}
+    </pre>
+  )
+}